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Dubininia charmosynae sp. n. (Figs. 20, 21) Type material. Male holotype and 1 male paratype (MNHN 34F1) from Charmosyna pulchella Gray GR (Psittaculidae), New Guinea, no other data. Depository. MNHN. Additional material. 3 males from Charmosyna placentis (Temminck) (Psittaculidae), no other collection data. 2 males (MNHN 34 F9) from Trichoglossus haematodus (Linnaeus) (Psittaculidae), New Guinea, no other data, (probably an accidental contamination). Description. Male (holotype, sizes for 1 paratype in parentheses). Idiosoma, length �� width, 320 (310) �� 200 (210), length of hysterosoma 190 (210). Prodorsal shield: roughly shaped as narrow trapezium, posterior margin straight, surface with pair of median ridges, length along midline 74 (75), greatest width 55 (58) (Fig. 20 A). Scapular setae se, si situated in posterolateral angles of the shield, setae se separated by 43 (47). Hysteronotal shield completely fused with humeral shields, anterior margin convex, greatest length from anterior margin to level of setae h3 210 (225), surface with a pair of longitudinally striated patches mesal to area of humeral shields. Setae c2 situated on anterior margin of humeral shields. Lateral margins of opisthosoma straight, width of opisthosoma at level of setae f2 88 (92). Opisthosomal lobes long, almost straight; terminal cleft semi-circular, with ends of posterior margins strongly divergent; interlobar septa extending to level of setae e2; length of cleft from anterior end to bases of h3 40 (38), length of cleft including septa 95 (90). Interlobar membrane well-developed, incision in this membrane triangular, 48 (50) long; terminal extensions of interlobar membrane roughly triangular, rounded apically, length of extensions from setae h3 to apex 26 (23) long. Lateral membranes with smooth lateral margins and acute posterior extension (Fig. 20 B). Setae d2 extending to midlevel of terminal cleft, setae e2 extending to lobar apices. Setae h2, h3, f2 situated on lobar apices, their bases arranged in slightly oblique row; setae ps1 situated at level of setae f2. Setae f2 narrowly lanceolate, 52 (48) long, 8 (7) wide. Setae ps2 situated on posterolateral margin of terminal extensions of interlobar membrane. Distance between dorsal setae: c2:d2 48 (52), d2: e2 58 (65), e2:h3 95 (98), h2:h2 80 (78), h3:h3 58 (65), ps1:ps1 36 (42), ps1:h3 4 (5), h3:ps2 17 (15). Epimerites I fused as a Y, sternum about 1/2 of the total length of epimerites, area between anterior parts strongly sclerotized (Fig. 20 B). Rudimentary sclerites of epimerites IIa present. Epimerites IIIa long and straight. Coxal fields IV open. Genital apparatus enlarged basally, 12 (13) �� 8 (10); paragenital apodemes present, fused into horseshoe-shaped sclerite; genital shield absent, setae g on soft tegument. Adanal shield entire, bow-shaped, bearing setae ps3, with tips extending to midlevel of adanal suckers. Adanal suckers oval, longitudinal diameter 15 (15). Setae 4b situated slightly anterior to level of setae 3a. Setae 1a represented by macrosetae extending to anterior end of terminal cleft; setae 4b short, extending to base of genital arch; setae 3a enlarged and flattened in basal part, extending beyond trochanters IV. Distance between ventral setae: 4b:g 25 (26), g:ps3 45 (48), ps3:h3 98 (100). Tarsus I with ventral setae la, ra, and wa filiform, seta s slightly thickened basally (Fig. 21 A). Genual solenidia �� 1 I 32 (34), �� III 33 (30) long. Tarsus II with wide semi-circular ventral extensions, seta s lanceolate at base, setae wa whip-shaped (Fig. 21 B). Ambulacral disc I normally developed, oval, with long triangular central sclerite; ambulacral disc II slightly smaller, with triangular central sclerite; ambulacral discs III and IV strongly reduced, much shorter that on tarsi I. Legs III with tarsus and distal part of tibia extending beyond lobar apices. Distal end of tibia III with ledge bearing solenidion �� and spine-like apical extension (Fig. 21 C), 74 (72) in length including extension; seta kT filiform, extending to midlevel of tarsus III. Tarsus III 98 (96) long, with spine-like apical process; setae w half as long as segment length; seta e situated approximately at midlength of segment; seta f situated in basal one third, approximately equidistant from setae e and w. Tibia IV 48 (47) long, with dorsal ridge; tarsus IV 24 (25) long, with tridentate apical process (Fig. 21 D). Length of ambulacral discs: I���18 (16), II ���15 (14), III and IV���5���7. Female. Unknown. Differential diagnosis. The new species, Dubininia charmosynae sp. n., is close to D. lorina, in having the following features in males: setae f2 are lanceolate, setae 3a have a flattened and lanceolate enlargement near their bases, and the interlobar septa is equal to or longer than the terminal cleft. Males of Dubininia charmosynae sp. n. differ from the latter species by the features as follows: the posterior margin of the prodorsal shield is straight and without any extension between the bases of setae si, the sternum is long, approximately half the total length of epimerites I; the ventral process of tarsus II is narrow and seta f of tarsus III is situated equidistantly from the bases of setae w and e (Figs. 20 A, B, 21B, C). In males of D. lorina, the prodorsal shield has a short and truncate median extension between the bases of setae si, the sternum is about 1/3 of the total length of epimerites I, the ventral process of tarsus II is semi-circular and the bases of setae e and f of tarsus III are close to each other and situated approximately at the midlevel of this segment (Figs. 17 A, B, 18B, C). Etymology. The specific epithet is derived from the generic name of the type host and is a noun in the genitive case., Published as part of Mironov, Sergey V., Ehrnsberger, Rainer & Dabert, Jacek, 2017, Feather mites of the genera Dubininia and Cacatualges (Acari: Xolalgidae) associated with parrots (Aves: Psittaciformes) of the Old World, pp. 451-490 in Zootaxa 4272 (4) on pages 477-479, DOI: 10.11646/zootaxa.4272.4.1, http://zenodo.org/record/800966

Dubininia micropsittae sp. n. (Figs. 22���24) Type material. Male holotype, 1 males and 1 female paratypes (AMNH 333991-3-4, YSU 2299) from Micropsitta pusio pusio (Scaltter) (Psittaculidae), Territory of New Guinea, Bismarck Archipelago, New Britain, Wide Bay, 14���16 January 1933, coll. W.F. Coultas. Depository. Holotype and all paratypes���AMNH. Description. Male (holotype, sizes for 1 paratype in parentheses). Idiosoma, length �� width, 265 (260) �� 175 (170), length of hysterosoma 175 (170). Hysteronotal shield fused with prodorsal and humeral shields into entire complex shield covering almost all dorsal surface of idiosoma, scapular shields fused at their antero-medial angles with lateral areas of prodorsal shield, median ridges on prodorsal shield absent (Fig. 22 A). Setae se separated by 63 (60). A pair of longitudinally striated patches situated mesal to area of humeral shields. Setae c2 situated slightly anterior to level of sejugal furrow. Lateral margins of opisthosomal lobes straight or slightly convex, width of opisthosoma at level of setae f2 85 (90). Opisthosomal lobes long, slightly attenuate apically; terminal cleft deep, semi-oval; interlobar septa extending beyond level of setae e2; length of cleft from anterior end to bases of h3 65 (60), length of cleft including septa 86 (85). Interlobar membrane well-developed, incision in this membrane deep triangular, with acute anterior end, 55 (48) long; terminal extension of interlobar membrane acute, 27 (25) long; lateral membranes with smooth lateral margins and with very small and acute posterior extensions (Fig. 22 B). Setae d2 extending to anterior end of terminal cleft, setae e2 broken in both specimens. Setae h2, h3, f2 situated on lobar apices, bases arranged in oblique row, setae ps1 situated anterior to level of setae f2. Setae f2 lanceolate with filiform apex, 60 (58) long, 9 (8) wide, extending beyond apices of tarsi IV. Setae ps2 situated on posterolateral margin of terminal extensions of interlobar membrane. Distance between dorsal setae: c2:d2 38 (40), d2: e2 53 (58), e2:h3 89 (75), h2:h2 78 (84), h3:h3 70 (72), ps1:ps1 53 (54), ps1:h3 11 (12), h3:ps2 10 (8). Epimerites I fused as a Y, sternum about 1/2 of total length of epimerites, area between anterior parts sclerotized (Fig. 22 B). Rudimentary sclerites of epimerites IIa present. Epimerites IIIa long and straight. Coxal fields IV open. Genital apparatus enlarged basally, 15 (13) �� 7 (6); paragenital apodemes present, wide, connected each other at antero-mesal ends; genital shield absent, setae g on soft tegument (Fig. 23 C). Adanal shield entire, bow-shaped, bearing setae ps3, with tips scarcely extending to level of adanal suckers. Adanal suckers oval, longitudinal diameter 13 (13). Setae 4b situated posterior to level of setae 3a. Setae 1a represented by macrosetae extending to level of adanal suckers; setae 4b extending to base of genital apparatus; setae 3a enlarged and flattened in basal part, extending to adanal shield. Distance between ventral setae: 3a:4b 17 (16), 4b:g 30 (33), g:ps3 34 (32), ps3:h3 90 (88). Tarsus I with ventral setae la, ra, filiform, setae s, wa slightly thickened basally (Fig. 23 A). Genual solenidia: �� 1 I 34 (35), �� III 30 (32) long. Tarsus II without noticeable ventral extensions, seta s lanceolate at base, setae wa whip-shaped (Fig. 23 B). Ambulacral disc I normally developed, oval, with long triangular central sclerite; ambulacral disc II much smaller, about half as long as disc I, central sclerite triangular; ambulacral discs III and IV strongly reduced. Legs III with tarsus and distal part of tibia extending beyond lobar apices. Tibia III without spinelike apical extension, 77 (78) in length; seta kT III extending to midlevel of tarsus III (Figs. 22, 23 D). Tarsus III 83 (84) long, with small spine-like apical process; setae w half as long as segment length; setae e, f situated in basal part of segment, approximately at level of seta w, subequal in length. Tibia IV 42 (39) long, without dorsal ridge; tarsus IV 24 (22) long, with bidentate apical process (Fig. 23 E). Length of ambulacral discs: I���11 (10), II���9 (8), III about 7, IV���less than 5. Female (1 paratype). Idiosoma, length �� width, 290 �� 130, length of hysterosoma 195. Prodorsal shield, hysteronotal and humeral shields fused into entire complex shield covering almost all dorsal surface of idiosoma, central area of this shield with several bow-shaped transverse striae; scapular shields fused at antero-medial ends with lateral areas of prodorsal shield (Fig. 24 A). Scapular setae se separated by 62. Opisthosoma with a pair of small lobes bearing setae h3 on apex and setae h2 on lateral ledges; terminal cleft small U-shaped, 22 �� 17, with slightly divergent lateral margins. Setae cp thickened along all their length, without filiform apex. Distance between dorsal setae c2:d2 70, d2:e2 76, e2:h3 52, h2:h2 45, h3:h3 28. Setae c2, d2 and e2 filiform, 5���8 long. Epimerites I fused into a Y with sternum about 2/3 of total length of epimerites, area between their free parts strongly sclerotized (Fig. 24 B). Epigynum large bow-shaped, 35 �� 60, tips extending to level of setae 3a, genital papillae and setae 4b situated on epigynum. Apodemes of oviporus short and wide, extending slightly beyond level of trochanters III. Areas of coxal fields III and IV completely sclerotized. Setae 1a filiform, short. Setae 3a, 4a, 4b and g minute, 5���8 long. Setae g situated at level of setae 3a. Distance between ventral setae: 4b:g 22, g:4a 48. Legs I, II as in male. Genual solenidia �� 1 I 25, �� III 8 long. Length of leg segments: tibia III 32, tarsus III 38, tibia IV 48, tarsus IV 46. Tarsi III, IV without ventral extensions (Figs. 23 F, G). Setae sR III filiform, 13 long; setae kT III filiform, shorter than corresponding tibiae; tibial solenidia: �� III 25, �� IV 23 long. All setae of tarsi III, IV filiform. Length of ambulacral discs: I ���12, II���9, III and IV about 5 long. Ambulacral stalks of tarsi III, IV slightly longer than corresponding discs. Setae d of tarsi III, IV approximately half as long as corresponding tarsi. Differential diagnosis. The new species, Dubininia micropsittae sp. n., is close to D. lorina and D. charmosynae described above in having, in males, lanceolate setae f2 and setae 3a with a basal lanceolate enlargement. Dubininia micropsittae sp. n. differs from these mites and all other known Dubininia species by the following features: in both sexes, the prodorsal, hysteronotal and humeral shields are fused into an entire dorsal shield covering almost the whole surface of the idiosoma; in males, three setae (f, e, w) are situated at the base of tarsus III, the terminal cleft is very deep and extends to the level of trochanter IV; in females, the opisthosoma has a pair of distinct opisthosomal lobes bearing setae h3 on apices. In both sexes of other known Dubininia species, the prodorsal and hysteronotal (if present) shields are well separated and distant from each other; in males, only seta w is situated at the base of tarsus III and the anterior end of the terminal cleft extends only to the level of femorogenua IV; in females, the opisthosoma is widely rounded, without any lobes. Etymology. The specific epithet is derived from the generic name of the type host and is a noun in the genitive case., Published as part of Mironov, Sergey V., Ehrnsberger, Rainer & Dabert, Jacek, 2017, Feather mites of the genera Dubininia and Cacatualges (Acari: Xolalgidae) associated with parrots (Aves: Psittaciformes) of the Old World, pp. 451-490 in Zootaxa 4272 (4) on pages 479-483, DOI: 10.11646/zootaxa.4272.4.1, http://zenodo.org/record/800966

Cacatualges probosciger sp. n. (Figs. 27, 28) Type material. Male holotype (MNHN 34 G6) from Probosciger aterrimus (Gmelin) (Cacatuidae), New Guinea, no other data. Depository. MNHN. Description. Male (holotype). Idiosoma, length �� width, 300 �� 205, length of hysterosoma 210. Prodorsal shield: roughly pear-shaped, without posterolateral extensions, without median ridges, posterior margin rounded and extending to level of scapular setae se, length along midline 70, greatest width 32 (Fig. 27 A). Scapular setae se, si situated on striated tegument, setae se separated by 54. Hysteronotal shield completely fused with humeral shields, anterior margin straight, greatest length from anterior margin to level of setae h3 195, surface with a pair of longitudinally striated patches situated mesal to area of humeral shields. Setae c2 situated on striated tegument slightly anterior to corresponding humeral shields. Lateral margins of opisthosoma lobes converging posteriorly, width of opisthosoma at level of setae f2 66. Opisthosomal lobes short, with rounded apices; terminal cleft small triangular; interlobar septa long, not extending to level of setae e2; length of cleft from anterior end to bases of h3 33, length of cleft including septa 65. Interlobar membrane well-developed; incision in this membrane triangular, with widely rounded anterior end, 18 long; terminal extensions of interlobar membrane short and rounded, 14 long. Lateral membrane with smooth lateral margins, posterior ends without extensions. Setae d2 extending to midlevel of terminal cleft, setae e2 extending to level of lobar apices. Setae h2, h3 and ps1 situated on lobar apices, approximately at same transverse level, setae f2 situated slightly anterior to them. Setae f2, ps1 short filiform, subequal to distance between bases of setae h3. Setae ps2 situated on posterolateral margin of terminal extension of interlobar membrane, extending beyond apices of tarsi IV. Distance between dorsal setae: c2:d2 58, d2:e2 72, e2:h3 65, h2:h2 60, h3:h3 48, ps1:ps1 33. Epimerites I fused as a Y, sternum about 1/3 of the total length of epimerites, area between anterior parts not sclerotized (Fig. 27 B). Rudimentary sclerites of epimerites IIa absent. Epimerites IIIa long, sclerotized areas wide, anterior end with truncate extension and straight. Coxal fields IV closed. Genital apparatus narrow, 28 �� 15; paragenital apodemes absent; genital shield small, poorly sclerotized, bearing setae g. Adanal shield represented by a pair of sclerites bearing setae ps3. Adanal suckers slightly oval, small, longitudinal diameter 14. Setae 4b situated anterior to level of setae 3a. Setae 1a filiform; setae 4b extending to genital setae g; setae 3a extending to level of adanal suckers. Distance between ventral setae: 4b:g 34, g:ps3 45, ps3:h3 70. Tarsus I with ventral setae la, ra, and wa filiform, seta s slightly thickened basally (Fig. 28 A). Genual solenidia �� 1 I 32, �� III 12 long. Tarsus II with seta s spatuliform, seta wa enlarged and flattened in basal 2/3, with filiform apex (Fig. 28 B). Ambulacral disc I normally developed, oval; ambulacral disc II rudimentary; ambulacrum of tarsus III absent, ambulacrum of tarsus IV small finger-like, ambulacral disc absent. Legs III with tarsus extending beyond lobar apices. Tibia III without spine-like apical extension, 75 in length, seta kT III not extending to midlevel of tarsus III (Figs. 27, 28 C). Tarsus III 78 long, claw-shaped; setae w spatuliform with filiform apex; setae d, e, f situated approximately at level of distal one third of this segment. Tibia IV 53 long, without dorsal ridge; tarsus IV 33 long, with truncate apical extension (Fig. 28 D). Length of ambulacral discs I 18. Female. Unknown. Differential diagnosis. Males of the new species, Cacatualges probosciger sp. n., differ from those of C. microdiscus by the following features: dorsal setae e2 are short and reach only the level of the lobar apices; the incision in the interlobar membrane is wide and rounded anteriorly, the adanal shield is split into two pieces bearing setae ps3, the genital apparatus is narrow, with its basal width being subequal to the distance between setae g, and seta d of tarsus III is shorter than half the length of this segment. In males of C. microdiscus, dorsal setae e2 extend far beyond the level of the lobar apices; the incision in the interlobar membrane is triangular, the adanal shield is entire, with setae ps3 near its tips, the base of the genital apparatus is twice as wide as the distance between setae g, and seta d of tarsus III is subequal in length to this segment. Etymology. The specific epithet is taken from the generic name of the type host and is a noun in apposition., Published as part of Mironov, Sergey V., Ehrnsberger, Rainer & Dabert, Jacek, 2017, Feather mites of the genera Dubininia and Cacatualges (Acari: Xolalgidae) associated with parrots (Aves: Psittaciformes) of the Old World, pp. 451-490 in Zootaxa 4272 (4) on pages 485-488, DOI: 10.11646/zootaxa.4272.4.1, http://zenodo.org/record/800966

Dubininia curta (Trouessart, 1885) (Figs. 1���3) Protalges curtus Trouessart 1885: 56; Gaud 1980: 10. Dubininia curta, Gaud and Atyeo 1981a: 69; Halliday 1998: 29. Material examined. Male lectotype, 1 female paralectotype (MNHN 34G2) from Platycercus elegans (Gmelin) (Psittaculidae) (Platycercus pennanti in label), Australia, no other data, (lectotype and paralectotypes designated here). Male (TMAGJ 5962) from Platycercus caledonicus (Gmelin) (Psittaculidae), Australia, Tasmania, Richmond, 12 July 1978, coll. J. Fitzgerald (bird), O. Seeman (mites). Description. Male (lectotype). Idiosoma, length �� width, 365 �� 280, length of hysterosoma 250. Prodorsal shield narrowly oval, with short posterolateral extensions bearing scapular setae se and si, length along midline 88, width at level of extensions 60 (Fig. 1 A). Setae se separated by 53. Hysteronotal shield completely fused with humeral shields, anterior margin slightly convex, greatest length from anterior margin to level of setae h3 250, surface with a pair of longitudinally striated patches situated mesal to areas of humeral shields. Setae c2 situated on striated tegument near anterior margin of hysteronotal shield. Outer margins of opisthosoma converging posteriorly, width of opisthosoma at level of setae f2 98. Opisthosomal lobes short triangular; terminal cleft shaped as shallow blunt-angular concavity; interlobar septa originating from the anterior end of this cleft extends almost to level of setae e2, length of cleft from anterior end to bases of h3 20, length of cleft including septa 96. Interlobar membrane well-developed, incision in this membrane narrow slit-like, extending to anterior end of terminal cleft, 40 long; terminal extensions of interlobar membrane widely rounded, length of this extensions 22 (from level of setae h3 to distal margin); lateral membranes with smooth lateral margins. Setae d2 broken in lectotype (in sample from P. caledonicus extending to midlevel of opisthosomal lobes); setae e2 extending beyond terminal margins of interlobar membrane. Setae h2, h3, situated on lobar apices, bases arranged in transverse row; setae f2 and ps1 situated slightly anterior to that level. Setae f2 filiform, extending to level of apices of tarsi IV. Setae ps2 situated on posterolateral margin of interlobar membrane, about 52 long. Distance between dorsal setae: c2:d2 70, d2:e2 80, e2:h3 98, h2:h2 85, h3:h3 72, ps1:ps1 50, ps1:h3 8, h3:ps2 11. Epimerites I free, posterior ends almost touching, area between epimerites not sclerotized (Fig. 1 B). Rudimentary sclerites of epimerites IIa present. Epimerites IIIa long, with wide sclerotized areas. Coxal fields IV open. Genital apparatus slightly enlarged posteriorly 24 �� 16; paragenital apodemes absent; genital shield absent, setae g on soft tegument. Adanal shield split into three small pieces; lateral pieces bearing setae ps3. Adanal suckers circular, diameter 20. Setae 4b situated slightly anterior to level of setae 3a. Setae 1a represented by macrosetae extending to midlevel of opisthosomal lobes; setae 4b short filiform, extending to base of genital apparatus; setae 3a extending to lobar apices. Distance between ventral setae: 4b:g 32, g:ps3 50, ps3:h3 112. Tarsus I with ventral setae la, ra, and wa filiform, seta s slightly thickened basally (Fig. 2 A). Solenidion ��1 of genu I 60 long. Tarsus II with semi-oval ventral extensions, seta s lanceolate at base, setae wa whip-shaped (Figs. 2 B, C). Ambulacral disc I normally developed, rounded with long triangular central sclerite; ambulacral disc II much smaller, oval, about half the length of disc I, central sclerite as small pentagonal plate; ambulacral discs III and IV strongly reduced. Legs III with tarsus and distal part of tibia extending beyond level of lobar apices. Tibia III with triangular apical extension, 105 in length including extension, seta kT extending beyond midlevel of tarsus III (Fig. 2 D). Tarsus III 90 long, with small spine-like apical process; setae w thickened basally, half as long as segment length; setae e, f situated approximately in middle of segment, subequal in length. Tibia IV 72 long, with dorsal ridge; tarsus IV 36 long, with tridentate apex (Fig. 2 E). Length of ambulacral discs I 20, disc II 12, discs III, IV about 7. Female (paralectotype). Idiosoma, length �� width, 320 �� 195, length of hysterosoma 200. Prodorsal shield narrowly oval, strongly narrowed in anterior part, without posterolateral extensions, with a pair of median ridges, posterior margin slightly extending beyond level of setae se, length along midline 85, greatest width 45 (Fig. 3 A). Scapular setae se situated on small circular plates, separated by 60. Opisthosoma bluntly rounded. Hysteronotal shield absent. Distance between dorsal setae c2:d2 75, d2:e2 95, e2:h3 36, h2:h2 73, h3:h3 58. Setae c2, d2, e2 filiform, about15 long. Epimerites I free, area between them not sclerotized (Fig. 3 B). Epigynum bow-shaped, 14 �� 45, tips not extending to level of genital papillae, setae 4b situated on epigynum. Apodemes of oviporus (egg-laying opening) short, extending slightly beyond level of trochanters III. Epimerites IIIa, IVa absent. Setae 1a filiform, not reaching the epigynum. Setae 3a 20 long, 4a 25 long, 4b, g about 15 long. Setae g and 3a situated approximately at same transverse level. Distance between ventral setae: 4b:3a 25, g:4a 55. Legs I, II as in male. Genual solenidia: �� 1 I 42, �� III 18 long. Length of leg segments: tibia III 35, tarsus III 47, tibia IV 41, tarsus IV 57. Tarsi III, IV without ventral extensions (Figs. 2 F, G). Setae sR III filiform, about 25 long; setae kT III filiform, shorter than corresponding tibiae; solenidia �� III and �� IV 32 and 20 long, respectively. Setae w III, w IV, r IV thickened basally, with filiform apex; remaining setae of tarsi III, IV filiform. Ambulacral discs: I��� 20, II���15, III and IV about 10 long. Ambulacral stalks of tarsi III, IV two times longer than corresponding discs. Setae d III equal to and seta d IV slightly longer than corresponding tarsi. Remark. Dubininia curta was previously known only from the Crimson Rosella, Platycercus elegans, in Australia (Trouessart, 1885). The Green Rosella, P. caledonicus, from Tasmania is a new host record for this mite., Published as part of Mironov, Sergey V., Ehrnsberger, Rainer & Dabert, Jacek, 2017, Feather mites of the genera Dubininia and Cacatualges (Acari: Xolalgidae) associated with parrots (Aves: Psittaciformes) of the Old World, pp. 451-490 in Zootaxa 4272 (4) on pages 456-459, DOI: 10.11646/zootaxa.4272.4.1, http://zenodo.org/record/800966, {"references":["Trouessart, E. L. (1885) Note sur le classification des Analgesiens et diagnoses d'especes et de genres nouveaux. Bulletin de la Societe d'Etudes Scientifiques d'Angers, 14, 46 - 89. [published in February, 1885 for year 1884]","Gaud, J. (1980) Acariens Sarcoptiformes plumicoles parasites sur les oiseaux Psittaciformes, Strigiformes et Caprimulgiformes en Afrique. Annales du Musee Royale de l'Afrique Centrale, Series in- 8 o, Sciences Zoolgiques, 230, 1 - 106.","Gaud, J. & Atyeo, W. T. (1981 a) La famille Xolalgidae Dubinin, nouveau statut (Sarcoptiformes plumicoles, Analgoidea). I. Sous-famille Ingrassiinae, n. sub. fam. Acarologia, 22, 63 - 79.","Halliday, R. B. (1998) Mites of Australia: A Checklist and Bibliography. Monographs on invertebrate taxonomy series. Uol 5. CSIRO Publishing, Collingwood, 327 pp."]}

Key to Dubininia species Males 1. Terminal cleft shaped as shallow concavity. Genital shield bearing setae g present. (Parasites of Falconiformes)......... 2. - Terminal cleft deep U-shaped or triangular; or terminal cleft shaped as shallow concavity and epimerites I are free. Genital shield usually absent. (Parasites of Psittaciformes).......................................................... 3. 2. Posterior margins of terminal membranes truncated. Sternum about 2/3 the total length of epimerites I. Genital apparatus not enlarged basally................................................... D. microhieracis Dabert and Mironov, 2015. - Posterior margins of terminal membranes rounded. Sternum about 1/2 the total length of epimerites I. Genital apparatus enlarged basally........................................................... D. accipitrina (Trouessart, 1885). 3. Setae f2 narrowly lanceolate, setae 3a with lanceolate enlargement at base (Fig. 17). (lorina group).................... 4. - Setae f2 and 3a simple, filiform (Fig. 1)................................................................. 6. 4. Prodorsal and hysteronotal shields fused into entire shield. Bases of setae e, f of tarsus III situated at base of the segment near seta w (Fig. 23 D)..................................................................... D. micropsittae sp. n. - Prodorsal and hysteronotal shields separated. Bases of setae e, f of tarsus III situated approximately in middle part of this segment............................................................................................... 5. 5. Ventral process of tarsus II semi-circular. Prodorsal shield with short median extension between bases of setae si. Sternum not longer than 1/3 the total length of epimerites I. Base of seta f of tarsus III closer to base of seta e than to seta w (Fig. 18 C)................................................................................ D. lorina (Trouessart, 1885). - Ventral process of tarsus II longer than wide. Prodorsal shield without extension between bases of setae si. Sternum about half the total length of epimerites I. Base of seta f of tarsus III situated equidistantly from bases of setae e and w (Fig. 21 C)........................................................................................ D. charmosynae sp. n. 6. Setae 1a relatively short, not extending beyond level of genital apparatus. Tibia III with dorso-apical spine (Fig. 8 C)...... 7. - Setae 1a represented by macrosetae extending far beyond level of genital apparatus. Dorso-apical spine of tibia III present or absent (Fig. 10 B).................................................................................... 8. 7. Length of idiosoma about 450 ��m, scapular setae se, si situated on small rounded sclerites separated from the main body of prodorsal shield. Opisthosomal lobes wide. Terminal extensions of interlobar membrane large, semi-circular. Legs IV with tibia and tarsus extending beyond level of lobar apices (Fig. 7)................................... D. pezopori sp. n. - Length of idiosoma about 350 ��m, scapular setae se, si situated on posterolateral extension of prodorsal shield. Opisthosomal lobes narrow. Terminal extensions of interlobar membrane small, poorly expressed. Legs IV with tarsus and distal half of tibia extending beyond level of lobar apices (Fig. 4)............................... D. melopsittaci Atyeo and Gaud, 1987. 8. Tibia III with dorso-apical spine (Fig. 12 G). Interlobar septa longer than or equal to the length of terminal cleft.......... 9. - Tibia III without dorso-apical spine (Fig. 12 C). Interlobar septa shorter than terminal cleft.......................... 10. 9. Sternum present, about half the total length of epimerites I. Prodorsal shield with narrow longitudinal crest in anterior one third. Terminal cleft semi-oval (Fig. 10)................................................. D. africana Gaud, 1980. - Sternum absent, tips of epimerites I contiguous, almost touching. Prodorsal shield without longitudinal crest. Terminal cleft short, blunt-angular (Fig. 1)....................................................... D. curta (Trouessart, 1885). 10. Terminal cleft semi-oval. Setae se, si situated on teardrop-like sclerites separated from the main body of prodorsal shield. Anterior margin of hysteronotal shield between setae c2 slightly convex (Fig. 11 A)........ D. psittacina (Trouessart, 1885). - Terminal cleft roughly triangular. Setae se, si on posterolateral extension of prodorsal shield. Anterior margin of hysteronotal shield between setae c2 shaped as recurved bow (Fig. 14 A)....................................... D. nestori sp. n., Published as part of Mironov, Sergey V., Ehrnsberger, Rainer & Dabert, Jacek, 2017, Feather mites of the genera Dubininia and Cacatualges (Acari: Xolalgidae) associated with parrots (Aves: Psittaciformes) of the Old World, pp. 451-490 in Zootaxa 4272 (4) on page 455, DOI: 10.11646/zootaxa.4272.4.1, http://zenodo.org/record/800966, {"references":["Dabert, J. & Mironov, S. V. (2015) A new species of the feather mite genus Dubininia Vassilev, 1958 (Acari: Xolalgidae) from the Black-thighed Falconet Microhierax fringillarius (Falconiformes: Falconidae). Acta Parasitologica, 60 (2), 248 - 253. https: // doi. org / 10.1515 / ap- 2015 - 0035","Trouessart, E. L. (1885) Note sur le classification des Analgesiens et diagnoses d'especes et de genres nouveaux. Bulletin de la Societe d'Etudes Scientifiques d'Angers, 14, 46 - 89. [published in February, 1885 for year 1884]","Atyeo, W. T. & Gaud, J. (1987) Feather mites (Acarina) of the Parakeet, Melopsittacus undulatus (Shaw) (Aves: Psittacidae). Journal of Parasitology, 73, 203 - 206.","Gaud, J. (1980) Acariens Sarcoptiformes plumicoles parasites sur les oiseaux Psittaciformes, Strigiformes et Caprimulgiformes en Afrique. Annales du Musee Royale de l'Afrique Centrale, Series in- 8 o, Sciences Zoolgiques, 230, 1 - 106."]}

Genus Cacatualges Dabert, Badek and Skoracki, 2007 Type species: Cacatualges microdiscus Dabert, Badek and Skoracki, 2007 by original designation. The genus Cacatualges was recently established for a single species, Cacatualges microdiscus Dabert, Badek and Skoracki, 2007, found on cockatoos of the genus Cacatua Vieillot in the Australian region (Dabert et al. 2007). This genus is certainly close to Dubininia and Fainalges, but apparently is more derived in some morphological features. Its main discriminating features are a strong reduction of the ambulacral disc on tarsi II in both sexes and on tarsi III and IV in females, loss of the ambulacral disc on pretarsus IV and an entire pretarsus III in males. The reduction of ambulacral discs on tarsi II in both sexes and on tarsi III, IV in females is followed by strengthening and heavy sclerotization of the ambulacral stalks on these segments, which take a claw-like form. In males of the genus Cacatualges, the whole of tarsus III resembles a large claw (Fig. 28 C). The genus Cacatualges is apparently restricted to cockatoos (Psittaciformes: Cacatuidae). In the present paper we describe one new species from a cockatoo of the genus Probosciger Kuhl., Published as part of Mironov, Sergey V., Ehrnsberger, Rainer & Dabert, Jacek, 2017, Feather mites of the genera Dubininia and Cacatualges (Acari: Xolalgidae) associated with parrots (Aves: Psittaciformes) of the Old World, pp. 451-490 in Zootaxa 4272 (4) on page 483, DOI: 10.11646/zootaxa.4272.4.1, http://zenodo.org/record/800966, {"references":["Dabert, J., Badek, A. & Skoracki, M. (2007) New feather mite species (Acari, Astigmata) from the Sulphur-crested Cockatoo Cacatua galerita and Yellow-crested Cockatoo C. sulphurea (Psittaciformes, Cacatuidae). Acta Parasitologica, 52 (3), 250 - 267."]}

Genus Dubininia Vassilev, 1958 Type species: Dubininia dobrevelikovi Vassilev, 1958 by original designation (= Protalges accipitrinus Trouessart, 1885). Diagnosis. Both sexes. Ingrassiines of small and medium size. Prodorsal shield narrowly oval or narrowly trapezoidal, scapular setae se, si, situated on posterolateral extensions of this shield or on separate sclerites situated posterolaterally to this shield (except D. micropsittae sp. n. with prodorsal shield occupying all median area of prodorsum and fused with hysteronotal shield). Scapular setae se represented by macrosetae. Scapular shields without flat suprategumental extensions on inner margin. Dorsal hysteronotal setae c1, d1, e1, h1 absent. Hysteronotal gland openings gl absent. Epimerites I in most species fused into a Y or V, rarely free (D. curta). Tarsi I, II with short dorso-apical spine; tarsus II with semi-circular or semi-oval ventral extension. Tarsus I with four ventral setae (ra, wa, la, s); tarsus II with two ventral setae (wa, s); these setae are setiform or flattened basally with distal filament. Tibiae I, II with a pair of spine-like ventral apophyses, on tibiae II they are noticeably stronger than those on tibiae I. Retrograde paraxial apophyses of genu I and antiaxial apophyses on femora I, II absent. Genu I with one solenidion s1. Setae cG on genua I and II, seta mG I dilated basally or spiculiform, seta mG II long, shaped as macroseta. Ambulacral discs present on all legs, circular or oval; discs of tarsi I, II similar in size, or discs of tarsi II slightly smaller than those on tarsi I; discs of tarsi III, IV noticeably smaller in size than on tarsus I. Males: Hysteronotal shield fused with humeral shields and outer sclerites of epimerites IV into entire shield covering the dorsum of hysterosoma. Cupules ia distinct or indistinct. Opisthosomal lobes long, parallel or slightly divergent, separated by large semi-oval or triangular terminal cleft and largely fused medially. Terminal cleft completely occupied by interlobar membrane shaped as a pair of rounded terminal extensions on lobar apices separated by median triangular incision. Outer margin of lobes with lateral membranes. Supranal concavity long and narrow, modified into well sclerotized interlobar septa. Genital organ narrow, located at level of trochanters III or slightly anterior. Genital shields absent (in species from parrots) or present (in species from falconiform birds). Paragenital apodemes usually absent; if present, short and fused at anterior ends into an arch. Epimerites IIIa long and wide, anterior ends encompassing bases of setae 4b. Epimerites IVa long, with anterior ends extending to level of genital organ base and often fused to medial part of corresponding epimerites IIIa. Coxal fields IV closed or open anteriorly. Adanal suckers oval or circular, with radially striated corolla and surrounded by smooth membrane. Adanal shield bow-shaped, entire or split into three pieces, bearing bases of setae ps3. Setae 4a on coxal fields IV. Legs III and IV hypertrophied, pretarsi of these legs much smaller than on tarsi I, II. Tarsus III narrowed, elongate and slightly curved, with small apical claw-like extension. Tarsus IV short and much thinner that corresponding tibia, with small apical denticles; seta d of tarsus IV reduced to small spine; seta e absent. Females: Hysteronotal shield absent in most species; if present, represented by darker sclerotized longitudinal band (D. lorina) or large punctated shield covering entire surface of hysterosoma and fused anteriorly with prodorsal shield (D. micropsittae sp. n.). Epigynum bow-shaped, situated at level of sejugal furrow or humeral shields. Apodemes of oviporus well developed, usually with long posterior extensions. Copulatory opening ventral, immediately posterior to anal opening. Macrosetae h2 and h3 subequal in length. Setae sR III thin, shorter than corresponding femorogenua. Tarsi III, IV elongated, straight, slightly longer than corresponding tibiae, without apical spine, ambulacral discs smaller than on tarsi I and II. Hosts and distribution. Parrots of the families Psittacidae, Psittaculidae and Strigopidae (Psittaciformes) of the Old World and falcons of the family Falconidae (Falconiformes) of both hemispheres. Remarks. The genus currently includes 12 species, with four new species described herein. Two species known from Falconiformes were recently (re)described (Mironov & Galloway 2014; Dabert & Mironov 2015). Nine species are associated with parrots distributed in the Old World. The record of D. circiniger (Trouessart, 1887), known from a single male, on Tauraco persa buffoni (Vieillot) in Africa (Trouessart 1887) is most probably an accidental museum contamination. Among species associated with parrots, three species, D. lorina (Trouessart, 1885), D. charmosynae sp. n. and D. micropsittae sp. n. constitute the lorina group, characterized by having lanceolate setae f2 and flattened and enlarged basal part of setae 3a in males, while in all remaining species of the genus, these setae are simple filiform., Published as part of Mironov, Sergey V., Ehrnsberger, Rainer & Dabert, Jacek, 2017, Feather mites of the genera Dubininia and Cacatualges (Acari: Xolalgidae) associated with parrots (Aves: Psittaciformes) of the Old World, pp. 451-490 in Zootaxa 4272 (4) on pages 454-455, DOI: 10.11646/zootaxa.4272.4.1, http://zenodo.org/record/800966, {"references":["Vassilev, I. D. (1958) Eine neue Akarinengattung und Art der Analgesoidea- Dubininia gen. n. und Dubininia dobrivelikovi sp. n. Izvestiya na Bulgarskata Akademiya na Naukite, Otdelenieto za Biologicheski i Meditsinski Nauki, 2, 77 - 82. [In Bulgarian with German summary]","Trouessart, E. L. (1885) Note sur le classification des Analgesiens et diagnoses d'especes et de genres nouveaux. Bulletin de la Societe d'Etudes Scientifiques d'Angers, 14, 46 - 89. [published in February, 1885 for year 1884]","Mironov, S. V. & Galloway, T. D. (2014) A redescription of the feather mite Dubininia accipitrina (Trouessart, 1885) (Acari: Xolalgidae), parasitizing falcons (Falconiformes: Falconidae). Proceedings of the Zoological Institute RAS, 318 (2), 168 - 176.","Dabert, J. & Mironov, S. V. (2015) A new species of the feather mite genus Dubininia Vassilev, 1958 (Acari: Xolalgidae) from the Black-thighed Falconet Microhierax fringillarius (Falconiformes: Falconidae). Acta Parasitologica, 60 (2), 248 - 253. https: // doi. org / 10.1515 / ap- 2015 - 0035","Trouessart, E. L. (1887) Diagnoses d'especes nouvelles de Sarcoptides plumicoles (Analgesinae). Bulletin de la Societe d'Etudes Scientifiques d'Angers, 16, 85 - 156. [published in May, 1887 for year 1886]"]}

Dubininia melopsittaci Atyeo and Gaud, 1987 (Figs. 4���6) Dubininia melopsittaci Atyeo and Gaud 1987: 204, fig. 1���4; Halliday 1998: 29; Beck and Pantchev 2006: 203 ���204; Mu et al. 2016: 31, fig. 8���10. Material examined. 1 male and 2 females (UGA 12 253) from Melopsittacus undulatus (Shaw) (Psittaculidae), USA, Georgia, Pet store, July 1894, coll. unknown. Description. Male (1 specimen). Idiosoma, length �� width, 335 �� 225, length of hysterosoma 210. Prodorsal shield narrowly oval, with short posterolateral extensions bearing scapular setae se and si, with pair of median ridges, length along midline 75, greatest width at level of extensions 55 (Fig. 4 A). Setae se separated by 42. Hysteronotal shield completely fused with humeral shields, anterior margin shaped as recurved bow, greatest length from anterior margin to level of setae h3 210, surface with a pair of longitudinally striated patches situated mesal to areas of humeral shields. Setae c2 situated on anterior margin of hysteronotal shield. Outer margins of opisthosoma slightly concave, width of opisthosoma at level of setae f2 100. Opisthosomal lobes long, slightly divergent; terminal cleft large, roughly triangular, with slightly concave lateral margins, interlobar septa extending beyond level of setae e2, length of cleft from anterior end to level of setae h3 57, length of cleft including septa 88. Interlobar membrane well-developed, incision in this membrane triangular, 32 long; terminal extensions of interlobar membrane poorly expressed, with posterior margins rounded, about 8 long; lateral membrane with smooth lateral margins. Setae d2 not extending to anterior end of terminal cleft, setae e2 extending beyond lobar apices. Setae h2, h3 and f2 situated on lobar apices, bases arranged in slightly oblique row, setae ps1 situated at level of setae f2. Setae f2 long filiform, extending beyond tips of tarsi IV. Setae ps2 situated on posterior margins of terminal extensions of interlobar membrane, 25���30 long. Distance between dorsal setae: c2:d2 48, d2:e2 83, e2:h3 80, h2:h2 92, h3: h3 85, ps1:ps1 63, ps1:h3 6, h3:ps2 5. Epimerites I fused as a Y, sternum about 1/3 of the total length of epimerites, area between anterior parts not sclerotized (Fig. 4 B). Rudimentary sclerites of epimerites IIa present. Epimerites IIIa long, with wide sclerotized areas. Coxal fields IV closed. Genital apparatus enlarged posteriorly 16 �� 12; paragenital apodemes absent; genital shield absent, g situated on soft tegument. Adanal shield entire, bow-shaped, bearing setae ps3, with tips not extending to level of adanal suckers. Adanal suckers circular, diameter 13. Setae 3a and 4b situated approximately at same transverse level. Setae 1a filiform, not extending to bases of setae 4b; setae 4b extending to base of genital apparatus; setae 3a extending to anterior end of terminal cleft. Distance between ventral setae: 4b:g 36, g:ps3 40, ps3:h3 100. Tarsus I with ventral setae la, ra, and wa filiform, seta s slightly thickened basally (Fig. 5 A). Genual solenidia: �� 1 I 85, �� III 38 long. Tarsus II with small semi-oval ventral extensions, seta s and wa thickened at base (Fig. 5 B). Ambulacral disc I normally developed, circular, with long triangular central sclerite; disc II slightly smaller, central sclerite triangular; ambulacral discs III about 1.5 times shorter than disc I, disc IV strongly reduced. Legs III with tarsus and distal part of tibia extending beyond lobar apices. Tibia III with spine-like apical extension, 86 in length including extension, seta kT extending to midlevel of tarsus III (Figs. 4, 5 C). Tarsus III 76 long, with small spinelike apical process; setae w half as long as segment length; setae e, f situated approximately in the middle of segment, subequal in length. Tibia IV 49 long, with dorsal ridge; tarsus IV 27 long, with bidentate apical extension (Fig. 5 D). Length of ambulacral discs: I��� 14, II���12, III��� 10, IV���5. Female (range for 2 specimens). Idiosoma, length �� width, 330-340 �� 165-170, length of hysterosoma 210��� 225. Prodorsal shield narrowly oval, strongly narrowed in anterior part, with posterolateral extensions bearing scapular setae se, si, with pair of median ridges, median area with larger dots than in lateral areas, length along midline 70���74, greatest width at level of extensions 45���48 (Fig. 6 A). Scapular setae se separated by 41���45. Opisthosoma bluntly rounded. Hysteronotal shield absent. Distance between dorsal setae c2:d2 90���98, d2:e2 90��� 96, e2:h 3 16���20, h2:h2 65���68, h3:h3 50���54. Setae c 2 10���15, d2 75���80, e2 32���35 long, all filiform. Epimerites I fused into a V or Y with very short sternum, area between free parts of epimerites not sclerotized (Fig. 6 B). Epigynum bow-shaped, 22���25 �� 48���54, tips extending to level of genital papillae, setae 4b situated on epigynum far from its ends. Apodemes of oviporus short, extending slightly beyond level of trochanters III. Epimerites IIIa, IVa absent. Setae 1a filiform, not extending to epigynum. Setae 3a 32���35 long, 4a 65���70 long, 4b and g about 10 long. Setae g situated at level of setae 3a. Distance between ventral setae: 4b:3a 24���26, g:4a 60���65. Legs I, II as in male. Genual solenidia: �� 1 I 25���28, �� III 5���7 long. Length of leg segments: tibia III 33 ���35, tarsus III 48 ���50, tibia IV 35 ���40, tarsus IV 52 ���54. Tarsi III, IV without ventral extensions (Fig. 6). Setae sR III filiform, 25���30 long; setae kT III filiform, shorter than corresponding tibiae; solenidia �� III and �� IV 15���18 and 12 ���15 long, respectively. Setae w III, w IV, and r IV thickened basally, with filiform apex; remaining setae of tarsi III, IV filiform. Ambulacral discs: I���10���12, II���9���10, III, IV���7���8 long. Ambulacral stalks of tarsi III and IV 2 ���2.5 times longer than corresponding discs. Setae d of tarsi III, IV slightly longer than corresponding tarsi., Published as part of Mironov, Sergey V., Ehrnsberger, Rainer & Dabert, Jacek, 2017, Feather mites of the genera Dubininia and Cacatualges (Acari: Xolalgidae) associated with parrots (Aves: Psittaciformes) of the Old World, pp. 451-490 in Zootaxa 4272 (4) on pages 459-461, DOI: 10.11646/zootaxa.4272.4.1, http://zenodo.org/record/800966, {"references":["Atyeo, W. T. & Gaud, J. (1987) Feather mites (Acarina) of the Parakeet, Melopsittacus undulatus (Shaw) (Aves: Psittacidae). Journal of Parasitology, 73, 203 - 206.","Halliday, R. B. (1998) Mites of Australia: A Checklist and Bibliography. Monographs on invertebrate taxonomy series. Uol 5. CSIRO Publishing, Collingwood, 327 pp.","Beck, W. & Pantchev, N. (2006) Praktische Parasitologie bei Heimtieren: Kleinsauger - Uogel - Reptilien - Bienen. Schlutersche, Hannover, 317 pp.","Mu, N., Su, X. - H., Liu, H. & Wang, Z. - Y. (2016) Two new feather mite species of the subfamily Ingrassiinae Gaud & Atyeo, 1981 (Acari: Analgoidea: Xolalgidae) from China. Systematic & Applied Acarology, 21 (1), 21 - 34. https: // doi. org / 10.11158 / saa. 21.1.3"]}

Dubininia nestori sp. n. (Figs. 14���16) Type material. Male holotype, 1 male and 2 female paratypes (MNHN 34G8) from Nestor notabilis Gould (Strigopidae), New Zealand, no other data. Depository. MNHN. Description. Male (holotype, size for 1 paratype in parentheses). Idiosoma, length �� width, 450 (420) �� 300 (270), length of hysterosoma 320 (290). Prodorsal shield: narrowly oval, with posterolateral extensions bearing scapular setae se, si, with pair of median ridges, length along midline 112 (110), greatest width 70 (65) (Fig. 14 A). Setae se separated by 57 (55). Hysteronotal shield completely fused with humeral shields, anterior margin shaped as recurve bow, greatest length from anterior margin to level of setae h3 300 (275), surface with a pair of longitudinally striated patches mesal to area of humeral shields. Setae c2 situated on anterior margin of hysteronotal shield. Outer margins of opisthosomal lobes slightly concave, width of opisthosoma at level of setae f2 150 (135). Opisthosomal lobes long, slightly divergent; terminal cleft deep triangular, interlobar septa almost extending to level of setae e2, length of cleft from anterior end to bases of h3 85 (70), length of cleft including septa 125 (120). Interlobar membrane well-developed, incision in this membrane triangular, with acute anterior end, 52 (40) long; terminal extensions of this membrane poorly developed, with widely rounded posterior margins, length of extensions 20 (16); lateral membranes with smooth lateral margins. Setae d2 (broken in holotype) extending to anterior end of interlobars septa (in paratype), setae e2 extending beyond lobar apices. Setae h2, h3 and f2 situated on lobar apices, their bases arranged in oblique row, setae ps1 situated at level of setae f2. Setae f2 filiform, extending beyond tips of tarsi IV. Setae ps2 situated on posterolateral margins of interlobar membrane. Distance between dorsal setae: c2:d2 78 (73), d2:e2 98 (88), e2:h3 125 (128), h2:h2 130 (125), h3: h3 110 (105), ps1:ps1 85 (80), ps1:h3 10 (10), h3:ps2 10 (7). Epimerites I fused as a Y, sternum long, more than 1/2 of the total length of epimerites, area between anterior parts not sclerotized (Fig. 14 B). Rudimentary sclerites of epimerites IIa present. Epimerites IIIa long, their sclerotized areas large, with a pair of acute extensions. Coxal fields IV closed. Genital apparatus enlarged posteriorly, 23 (24) �� 16 (17); paragenital apodemes absent; genital shield absent, setae g situated on soft tegument. Adanal shield entire, bow-shaped, bearing setae ps3, with tips not extending to level of adanal suckers. Adanal suckers circular, with diameter 21 (19). Setae 4b situated anterior to level of setae 3a. Setae 1a represented by macrosetae extending to level of adanal suckers; setae 4b reaching the level of setae g; setae 3a as macrosetae, extending beyond lobar apices. Distance between ventral setae: 4b:g 38 (36), g:ps3 62 (55), ps3:h3 138 (130). Tarsus I with ventral setae la, ra, and wa filiform, seta s slightly thickened basally (Fig. 15 A). Genual solenidia: �� 1 I 90 (80), �� III 50 (40) long. Tarsus II with long tongue-like ventral extensions, seta s lanceolate at base, setae wa whip-shaped with membraneous enlargement in medial part (Fig. 15 B). Ambulacral disc I normally developed, oval with long triangular central sclerite; ambulacral disc II much smaller, about 1/3 the length of disc I, central sclerite triangular; ambulacral discs III and IV strongly reduced. Legs III with tarsus extending beyond lobar apices. Tibia III without spine-like apical extension, 105 (95) long, seta kT not extending to midlevel of tarsus III (Fig. 14). Tarsus III 104 (98) long, with small spine-like apical process; setae w half as long as this segment; bases of setae e, f close each other and situated approximately at midlevel of this segment, seta f 1.5 times longer than seta e. Tibia IV 78 (71) long, without dorsal ridge; tarsus IV 78 (71) long, with truncate apical process (Fig. 15 D). Length of ambulacral discs: I���23 (25), II���10 (11), III and IV���less than 5. Female (range for 2 specimens). Idiosoma length, length �� width, 360���365 �� 200���210, length of hysterosoma 210���225. Prodorsal shield narrowly oval, strongly narrowed in anterior part, without posterolateral extensions, with a pair of median ridges, median area with larger dots than in lateral areas, posterior margin slightly extending beyond level of setae se, length along midline 95���100, greatest width 44���50 (Fig. 16 A). Scapular setae se situated on small oval plates, setal bases separated by 65���74. Opisthosoma bluntly rounded. Hysteronotal shield absent. Distance between dorsal setae c2:d2 80���85, d2:e2 95���98, e2:h3 42���45, h2:h2 68���70, h3:h3 48���50. Setae c2, d2, e2 filiform, 30���35 long. Epimerites I fused into a Y with very short sternum, area between free parts of epimerites not sclerotized (Fig. 16 B). Epigynum bow-shaped, 10���11 �� 42���44, tips not extending to level of genital papillae, setae 4b situated on tips of epigynum. Apodemes of oviporus long, extending to midlevel between trochanters III and IV. Epimerites IIIa, IVa present, small. Setae 1a filiform, reaching the epigynum. Setae 3a 55���60 long, 4a 90���110, 4b 34���36 long, g about 25���30 long. Setae g situated slightly posterior to level of setae 3a. Distance between ventral setae: 4b:g 35��� 40, g:4a 65���70. Legs I, II as in male. Genual solenidia: �� 1 I 50���58, �� III 15���18 long. Length of leg segments: tibia III 38 ���40, tarsus III 50 ���53, tibia IV 43 ���45, tarsus IV 66 ���68. Tarsi III, IV without ventral extensions. Setae sR III filiform, about 32���35 long; setae kT III filiform, shorter than corresponding tibiae; length of tibial solenidia: �� III 25���30, �� IV 18���20. Setae w III, w IV, r IV thickened basally, with filiform apex; remaining setae of tarsi III, IV filiform. Ambulacral discs: I���18���20, II���10���11, III and IV���7���9 long. Ambulacral stalks of tarsi III, IV nearly 3 times longer than corresponding discs. Setae d of tarsi III, IV longer than corresponding tarsi. Differential diagnosis. The new species, Dubininia nestori sp. n., is very close to D. psittacina from Strigops harboptilus (Strigopidae) in having, in both sexes, the ambulacral discs of legs I about 3 times longer than those on tarsi II, and, in males, the epimerites IIIa with a pair of acute extensions, the ventral extension of tarsi II noticeably protruding, and tibia III without the dorso-apical spine. Dubininia nestori is distinguished from the latter species by the following characters: in males, the terminal cleft is triangular, setae se, si are situated on the posterolateral extensions of the prodorsal shield, and the anterior margin of the hysteronotal shield between setae c2 is shaped as a recurved bow; in females, setae e2 are short filiform (20���25 ��m) and do not extend to the level of seta h2 bases, bases of setae w and r of tarsus IV divide this segment into three approximately equal parts. In males of D. psittacina, the terminal cleft is semi-oval, setae se, si are on teardrop-like sclerites separated from the main body of the prodorsal shield, and the anterior margin of the hysteronotal shield between setae c2 is slightly convex; in females, setae e2 are longer (30���40 ��m) and extending to level of seta h2 bases, and seta w of tarsus IV is situated approximately at the midlevel of this segment. Etymology. The specific epithet is derived from the generic name of the type host and is a noun in the genitive case., Published as part of Mironov, Sergey V., Ehrnsberger, Rainer & Dabert, Jacek, 2017, Feather mites of the genera Dubininia and Cacatualges (Acari: Xolalgidae) associated with parrots (Aves: Psittaciformes) of the Old World, pp. 451-490 in Zootaxa 4272 (4) on pages 470-473, DOI: 10.11646/zootaxa.4272.4.1, http://zenodo.org/record/800966

Dubininia pezopori sp. n. (Figs. 7���9) Type material. Male holotype (TMAG. J5963) and 1 female paratype (TMAG J5964) from Pezoporus wallicus (Kerr) (Psittaculidae), Australia, Tasmania, SE Cape Track, 5 July 2003, coll. O. Seeman. Depository. Holotype and paratypes���TMAG. Description. Male (Holotype). Idiosoma, length �� width, 465 �� 350, length of hysterosoma 305. Prodorsal shield: narrowly oval, without posterolateral extensions, with a pair of median ridges, posterior end extending beyond level of scapular setae se, length along midline 92, greatest width 48 (Fig. 7 A). Scapular setae se, si situated on small circular plates, setae se separated by 65. Hysteronotal shield completely fused with humeral shields, anterior margin shallowly concave, greatest length from anterior margin to level of setae h3 295, surface with a pair of longitudinally striated patches mesal to area of humeral shields. Cupules ia visible on striated patches. Setae c2 situated on striated tegument slightly anterior to hysteronotal shield. Outer margins of opisthosomal lobes slightly converging posteriorly, width of opisthosoma at level of setae f2 130. Opisthosomal lobes long and wide; terminal cleft triangular, its lateral margins slightly convex; interlobar septa not extending to level of setae e2; length of cleft from anterior end to bases of h3 35, length of cleft including septa 102. Interlobar membrane well-developed, incision in this membrane narrowly triangular, with acute anterior end, 45 long; terminal extensions of interlobar membrane widely rounded, almost semi-circular in shape, 35 long; lateral membranes with smooth lateral margins, posterior end without extension. Setae d2 not extending to midlevel of opisthosomal lobes, setae e2 extending beyond lobar apices. Setae h2, h3, f2 situated on lobar apices, their bases arranged in oblique row, setae ps1 situated at level of setae f2. Setae f2 long filiform, extending beyond tips of tarsi IV. Setae ps2 situated on posterolateral margin of terminal extensions of interlobar membrane, extending to apices of tarsi IV. Distance between dorsal setae: c2:d2 75, d2:e2 100, e2:h3 120, h2:h2 115, h3: h3 95, ps1:ps1 60, ps1:h3 6, h3:ps2 15. Epimerites I fused as a V or Y, with very short sternum, area between free parts of epimerites not sclerotized (Fig. 7 B). Rudimentary sclerites of epimerites IIa present. Epimerites IIIa long and straight. Coxal fields IV open. Genital apparatus enlarged posteriorly, 27 �� 22; paragenital apodemes absent; genital shields absent, setae g on soft tegument. Adanal shield entire, bow-shaped, bearing setae ps3, with tips not extending to level of adanal suckers. Adanal suckers slightly oval, longitudinal diameter 21. Setae 4b situated slightly posterior to level of setae 3a. Setae 1a filiform, not extending to bases of setae 4b; setae 4b extending beyond bases of setae g; setae 3a extending to lobar apices. Distance between ventral setae: 4b:g 43, g:ps3 66, ps3:h3 130. Tarsus I with ventral setae la, ra, and wa filiform, seta s thickened basally (Fig. 8 A). Genual solenidia: �� 1 I 70, �� III 60 long. Tarsus II with ventral extensions half as long as this segment, seta s lanceolate at base, seta wa whipshaped with membraneous enlargement in medial part (Fig. 8 B). Ambulacral discs I normally developed, oval with long triangular central sclerite; ambulacral discs II slightly smaller than disc I, central sclerite triangular; ambulacral discs III and IV strongly reduced. Legs III with tarsus and distal part of tibia extending beyond lobar apices. Tibia III with spine-like apical extension, 110 in length including extension; seta kT extending beyond ambulacrum of tarsus III (Fig. 7). Tarsus III 122 long, with small spine-like apical process and dorsal crest (Fig. 8 C); setae w half as long as segment length; setae e, f situated approximately at midlevel of segment, subequal in length. Tibia IV 80 long, with dorsal ridge; tarsus IV 40 long, with tridentate apical process (Fig. 8 D). Length of ambulacral discs: I���20, II��� 15, III and IV 8���9. Female (paratype). Idiosoma length, length �� width, 380 �� 230, length of hysterosoma 255. Prodorsal shield narrowly oval, strongly narrowed in anterior part, without posterolateral extensions, with a pair of median ridges, median area with larger dots than in lateral areas, posterior margin slightly extending beyond level of setae se, length along midline 105, greatest width 50 (Fig. 9 A). Scapular setae se, si situated on small circular plates, setae se separated by 70. Opisthosoma bluntly rounded. Hysteronotal shield absent. Distance between dorsal setae c2:d2 95, d2:e2 100, e2:h3 40, h2:h2 78, h3:h3 57. Setae c2, d2 and e 2 15 ���20 long, all filiform. Epimerites I fused into a narrow V, area between free parts not sclerotized (Fig. 9 B). Epigynum bow-shaped, 14-45, tips not extending to level of genital papillae, setae 4b situated on epigynum. Apodemes of oviporus short, extending to midlevel between trochanters III and IV. Epimerites IIIa, IVa absent. Setae 1a filiform, not reaching the epigynum. Length of setae: 3a 40, 4a 90, 4b 20, g 30. Setae g and 3a approximately at the same transverse level. Distance between ventral setae: 4b:g 20, g:4a 78. Legs I, II as in male. Genual solenidia �� 1 I 65, �� III 15 long. Length of leg segments: tibia III 41, tarsus III 57, tibia IV 46, tarsus IV 66. Tarsi III, IV without ventral extensions (Fig. 9). Setae sR III filiform, 25 long; setae kT III filiform, subequal to corresponding tibiae; length of tibial solenidia: �� III 32, �� IV 28. Setae w III, w IV, r IV thickened basally, with filiform apex; remaining setae of tarsi III, IV filiform. Ambulacral discs: I���15, II���12, III and IV about 10 long. Ambulacral stalks of tarsi III, IV 2 times longer than corresponding discs. Setae d of tarsi III, IV slightly longer than corresponding tarsi. Differential diagnosis. The new species D. pezopori sp. n., is most close to D. melopsittaci in having, in both sexes, short filiform coxal setae 1a with apices not reaching the level of the genital apparatus/epigynum. Dubininia pezopori differs from D. melopsittaci by the following features: in both sexes, scapular setae se, si are situated on small rounded sclerites separated from the main body of the prodorsal shield; in males, the terminal extensions of the interlobar membrane are large and semi-circular, the interlobar septa does not extend to the level of setae e2, and the idiosomal length is about 450 ��m; in females, the epigynum is represented by a slightly curved sclerite, with the tips bearing setae 4b and not extending to the level of the genital papillae, setae d2 are 15���20 ��m long and several times shorter than the distance between their bases. In both sexes of D. melopsittaci, scapular setae se, si are situated on posterolateral extensions of the prodorsal shield; in males, the terminal extensions of the interlobar membrane are poorly expressed, the interlobar septa extends to or beyond the level of setae e2, the idiosomal length is about 350 ��m; in females, the epigynum is bow-shaped, with setae 4b situated at the midlevel of its branches and with the tips extending to the level of the genital papillae, setae d2 are longer (75���80 ��m) and slightly exceed the distance between their bases. Etymology. The specific epithet is derived from the generic name of the type host and is a noun in the genitive case., Published as part of Mironov, Sergey V., Ehrnsberger, Rainer & Dabert, Jacek, 2017, Feather mites of the genera Dubininia and Cacatualges (Acari: Xolalgidae) associated with parrots (Aves: Psittaciformes) of the Old World, pp. 451-490 in Zootaxa 4272 (4) on pages 462-465, DOI: 10.11646/zootaxa.4272.4.1, http://zenodo.org/record/800966

Dubininia africana Gaud, 1980 (Figs. 10, 12 E���H) Dubininia africana Gaud 1980: 10 ���13, figs. 1a���c; Gaud and Atyeo 1981a: 68. Material examined. 1 male (AMU01759) from Poicephalus rufiventris (Ruppell) (Psittacidae) (UMB 1638), East Africa, no other data; 1 male (AMU01760) from P. cryptoxanthus (Peters) (Psittacidae) (UMB 16235), Tanzania, Mbinga District, Matengo Highlands, Ugano, 1 April 1936, coll. unknown. Dubininia africana was recorded by Gaud (1980) from various parrots in Africa: Poicephalus senegalus (Linnaeus) (type host) in Cameroon, P. gulielmi (Jardine) and P. rufiventris (Ruppell) in Kenia, P. robustus (Gmelin) in Zaire, Psittacus erythacus Linnaeus (Psittacidae) in Cameroon, and Agapornis pullarius (Linnaeus) (Psittaculidae) in Cameroon and Zaire. Associations of this mite with the two latter hosts look questionable and most probably these records were the results of contamination, since Gaud collected this material from museum skins. Materials of Gaud were not available for our study. In the present work, Poicephalus cryptoxanthus is a new host record for this mite., Published as part of Mironov, Sergey V., Ehrnsberger, Rainer & Dabert, Jacek, 2017, Feather mites of the genera Dubininia and Cacatualges (Acari: Xolalgidae) associated with parrots (Aves: Psittaciformes) of the Old World, pp. 451-490 in Zootaxa 4272 (4) on page 466, DOI: 10.11646/zootaxa.4272.4.1, http://zenodo.org/record/800966, {"references":["Gaud, J. (1980) Acariens Sarcoptiformes plumicoles parasites sur les oiseaux Psittaciformes, Strigiformes et Caprimulgiformes en Afrique. Annales du Musee Royale de l'Afrique Centrale, Series in- 8 o, Sciences Zoolgiques, 230, 1 - 106.","Gaud, J. & Atyeo, W. T. (1981 a) La famille Xolalgidae Dubinin, nouveau statut (Sarcoptiformes plumicoles, Analgoidea). I. Sous-famille Ingrassiinae, n. sub. fam. Acarologia, 22, 63 - 79."]}

Dubininia lorina (Trouessart, 1885) (Figs. 17���19) Protalges lorinus Trouessart 1885: 57; Gaud 1980: 10. Dubininia lorina, Gaud and Atyeo 1981a: 69. Material examined. Male lectotype, 2 female paralectotypes (MNHN 30 F7) from Lorius domicella (Linnaeus) (Psittaculidae), Indonesia, Moluccas, no other data (lectotype and paralectotypes designated here); 2 males (AMNH 617962, YSU 2280), same host and location, Ceram 19 July, 1911, E. Streseman; 1 male, 1 female (AMNH 617967, YSU 2278), same host and location, Amboina, 3 April 1906, H. K��hn. 1 male (AMNH 618009, YSU 2292) from Lorius garrulus flavopalliatus Salvadori (Psittaculidae), Indonesia, Moluccas, Obi Island, September 1897, W. Doherty. 1 male (AMU01761) from Lorius garrulus (Linnaeus) (Psittaculidae) (UMB1732), no other collection data. Description. Male (lectotype). Idiosoma, length �� width, 310 �� 220, length of hysterosoma 210. Prodorsal shield shaped as narrow trapezium, with a pair of median ridges, posterior margin straight, with short truncate median extension, length along midline 73, greatest width 70 (Fig. 17 A). Scapular setae se, si situated in posterolateral angles of the shield, bases of setae se separated by 55. Hysteronotal shield completely fused with humeral shields, anterior margin convex, greatest length from anterior margin to level of setae h3 235, surface with poorly expressed striated patches mesal to area of humeral shields (striation indistinct in several non-type specimens). Setae c2 situated on hysteronotal shield near its anterior margin. Outer margins of opisthosoma slightly convex, width of opisthosoma at level of setae f2 95. Opisthosomal lobes long and almost straight; terminal cleft semi-circular, with strongly divergent margins at lobar apices; interlobar septa extending to level of setae e2; length of cleft from anterior end to bases of h3 40, length of cleft including septa 95. Interlobar membrane welldeveloped, incision in this membrane triangular, 52 long; terminal extensions of interlobar membrane acute, length of these extension from bases of setae h3 to tips 32. Lateral membranes with smooth lateral margins and acute posterior extensions (Fig. 17 B). Setae d2 extending to anterior end of terminal cleft; setae e2 (broken in lectotype) extending to lobar apices (in additional specimens). Setae h2, h3, f2 situated on lobar apices, their bases arranged in slightly oblique row, setae ps1 situated at level of setae f2. Setae f2 lanceolate, 70 long, 10 wide, extending beyond apices of tarsi IV. Setae ps2 situated on lateral margins of terminal extensions of interlobar membrane. Distance between dorsal setae: c2:d2 50, d2:e2 64, e2:h3 100, h2:h2 80, h3: h3 68, ps1:ps1 44, ps1:h3 7, h3:ps2 17. Epimerites I fused as a Y, sternum about 1/4 the total length of epimerites, area between anterior parts not sclerotized (Fig. 17 B). Rudimentary sclerites of epimerites IIa present. Epimerites IIIa long, with wide sclerotized area. Coxal fields IV open. Genital apparatus enlarged basally 22 �� 12; paragenital apodemes present, fused at anterior ends into horseshoe-shaped sclerite; genital shield absent, setae g on soft tegument. Adanal shield entire, bow-shaped, bearing setae ps3, with tips not extending to level of adanal suckers. Adanal suckers circular, diameter 18. Setae 3a and 4b situated at same transverse level. Setae 1a filiform, extending to midlevel of trochanters III; setae 4b reaching the level of setae g; setae 3a lanceolate in basal part, extending to midlevel of opisthosomal lobes. Distance between ventral setae: 4b:g 30, g:ps3 42, ps3:h3 108. Tarsus I with ventral setae la, ra, wa and s filiform, (Fig. 18 A). Genual solenidia: �� 1 I 35, �� III 28 long. Tarsus II with semi-circular ventral extensions, seta wa and s slightly thickened at base (Fig. 18 B). Ambulacral disc I normally developed, oval with long triangular central sclerite; ambulacral disc II slightly smaller, central sclerite triangular; ambulacral discs III and IV much smaller, 2.5���3 shorter than disc I. Legs III extending beyond lobar apices by tarsus and distal part of tibia. Tibia III with spine-like apical extension, 82 in length including extension, seta kT extending to midlevel of tarsus III (Figs. 17, 18 C). Tarsus III 77 long, with flattened apical process; setae w longer than half the length of this segment; setae e, f situated approximately at midlevel of this segment, subequal in length. Tibia IV 54 long, with dorsal ridge; tarsus IV 28 long, with tridentate apical extension (Fig. 18 D). Length of ambulacral discs: I���19, disc II���15, discs III, IV���5���7. Female (range for 2 paralectotype). Idiosoma, length �� width, 310���315 �� 190���195, length of hysterosoma 200���210. Prodorsal shield shaped as a longitudinal plate with blunt-angular lateral margins, short lateral extensions touching supracoxal sclerites, posterior margin straight and extending beyond level of scapular setae se, surface with a pair of median ridges, median area with larger dots than in lateral areas, length along midline 78���83, greatest width 60���64 (Fig. 19 A). Scapular setae se, si situated on small roughly triangular fragments of prodorsal shield, setal bases se separated by 68���72. Opisthosoma bluntly rounded. Hysteronotal shield represented by median narrow band sclerotized stronger (of dark yellow color) than remaining soft tegument of the body. Distance between dorsal setae c2:d2 68���70, d2:e2 85���88, e2:h3 40���45, h2:h2 57���60, h3:h3 44���46. Setae c2 short filiform, about 15 long, setae d2 and e2 strongly thickened, spiculiform, 85���90 and 54���60 long, respectively. Epimerites I free, posterior ends almost contiguous, area between free parts of epimerites not sclerotized (Fig. 19 B). Epigynum bow-shaped, 16���17 �� 45���48, its tips extending to level of genital papillae, setae 4b situated on epigynum. Apodemes of oviporus very long, extending to midlength between levels of trochanters III and IV. Epimerites IIIa, IVa absent. Setae 1a short filiform, not reaching the epigynum. Setae g and 3a situated at same transverse level. Setae 3a 15���16, 4a 18���20, 4b about 10, g 10���12 long. Distance between ventral setae: 4b:g 22��� 24, g:4a 55���60. Legs I, II as in male. Genual solenidia: ��1 I 28���30, �� III 8���11 long. Length of leg segments: tibia III 31���33, tarsus III 40 ���45, tibia IV 38 ���40, tarsus IV 54 ���56. Tarsi III, IV without ventral extensions. Setae sR III filiform, about 17���22 long; setae kT III filiform, shorter than corresponding tibiae (Fig. 19 B); tibial solenidia: �� III 1 8���20, �� IV 20���22 long. Setae w III, w IV, r IV thickened basally, with filiform apex; remaining setae of tarsi III, IV filiform. Ambulacral discs: I���14���15, II���12���13, III and IV���10���11 long. Ambulacral stalks of tarsi III, IV two times longer than corresponding discs. Setae d of tarsi III, IV about 1/3 the length of corresponding tarsi. Remarks. Describing Dubininia lorina, Trouessart (1885) reported two host species, Lorius garrulus (Linnaeus) and L. domicella (Linnaeus), from New Guinea and Moluccas. In studying Trouessart���s slides, we have found only a slide from L. domicella containing this mite species with the remark ���cotypes��� made by W.T. Atyeo. We designated the only male in this slide as a lectotype and females as paralectotypes., Published as part of Mironov, Sergey V., Ehrnsberger, Rainer & Dabert, Jacek, 2017, Feather mites of the genera Dubininia and Cacatualges (Acari: Xolalgidae) associated with parrots (Aves: Psittaciformes) of the Old World, pp. 451-490 in Zootaxa 4272 (4) on pages 474-477, DOI: 10.11646/zootaxa.4272.4.1, http://zenodo.org/record/800966, {"references":["Trouessart, E. L. (1885) Note sur le classification des Analgesiens et diagnoses d'especes et de genres nouveaux. Bulletin de la Societe d'Etudes Scientifiques d'Angers, 14, 46 - 89. [published in February, 1885 for year 1884]","Gaud, J. (1980) Acariens Sarcoptiformes plumicoles parasites sur les oiseaux Psittaciformes, Strigiformes et Caprimulgiformes en Afrique. Annales du Musee Royale de l'Afrique Centrale, Series in- 8 o, Sciences Zoolgiques, 230, 1 - 106.","Gaud, J. & Atyeo, W. T. (1981 a) La famille Xolalgidae Dubinin, nouveau statut (Sarcoptiformes plumicoles, Analgoidea). I. Sous-famille Ingrassiinae, n. sub. fam. Acarologia, 22, 63 - 79."]}

Cacatualges microdiscus Dabert, Badek and Skoracki, 2007 (Figs. 25, 26) Cacatualges microdiscus Dabert et al. 2007: 262 ���265, Figs. 8���11, 12 A���F. Material examined. Male holotype, 1 male and 2 female paratypes (AMU 01744) from Cacatua galerita (Lathan) (Cacatuidae), New Guinea, Astrolabe Bay, 1900, coll. B. Hagen. 1 female (AMU O1745) from C. sulphurea (Gmelin), Timor, 28 July 1911, coll. C.B. Hanuel. Depository. AMU. This species was recorded so far from two species of cockatoos, Cacatua galerita (type host) in New Guinea and C. sulphurea in Timor (Dabert et al. 2007)., Published as part of Mironov, Sergey V., Ehrnsberger, Rainer & Dabert, Jacek, 2017, Feather mites of the genera Dubininia and Cacatualges (Acari: Xolalgidae) associated with parrots (Aves: Psittaciformes) of the Old World, pp. 451-490 in Zootaxa 4272 (4) on page 484, DOI: 10.11646/zootaxa.4272.4.1, http://zenodo.org/record/800966, {"references":["Dabert, J., Badek, A. & Skoracki, M. (2007) New feather mite species (Acari, Astigmata) from the Sulphur-crested Cockatoo Cacatua galerita and Yellow-crested Cockatoo C. sulphurea (Psittaciformes, Cacatuidae). Acta Parasitologica, 52 (3), 250 - 267."]}

Dubininia psittacina (Trouessart, 1885) (Figs. 11, 12 A���D, 13) Protalges psittacinus Trouessart 1885: 57. Dubininia psittacina, Gaud 1980: 12, fig. 1d; Gaud and Atyeo 1981a: 69. Material examined. 3 males and 3 females (AMNH 623843, YSU 2547) from Strigops harboptilus Gray GR (Strigopidae), New Zealand, South Island, Otago, circa 1980, coll. unknown. Description. Male (range for 3 specimens). Idiosoma, length �� width, 380���390 �� 260���270, length of hysterosoma 240���250. Prodorsal shield narrowly oval, without posterolateral extensions, with a pair of median ridges, with rounded posterior end extending beyond level of scapular setae se, length along midline 90���96, greatest width 40���42 (Fig. 11 A). Scapular setae se, si situated on small teardrop-like posterolateral fragments of prodorsal shield, bases of setae se separated by 54���56. Hysteronotal shield fused laterally with humeral shields, anterior margin slightly convex, greatest length from anterior margin to level of setae h3 240���245, surface with a pair of longitudinally striated patches mesal to area of humeral shields. Setae c2 situated on anterior margins of humeral shields. Lateral margins of opisthosoma converging posteriorly and slightly concave, width of opisthosoma at level of setae f2 115���120. Opisthosomal lobes long, narrowing terminally; terminal cleft large semi-oval; interlobar septa not extending to level of setae e2; length of cleft from anterior end to level of setae h3 62���67, length of cleft including septa 95���100. Interlobar membrane well-developed; incision in this membrane triangular, with slit-like anterior end, 38���42 long; terminal extensions of interlobar membrane small, with rounded posterior margins, 12���15 long. Lateral membranes with smooth lateral margins posterior end without extension. Setae d2 not extending to lobar apices, setae e2 extending to posterior margins of terminal membranes. Setae h2, h3, f2 situated on lobar apices, bases arranged in roughly transverse row, setae ps1 situated slightly anterior to level of setae f2. Setae f2 long filiform, extending beyond level of tarsal apices IV. Setae ps2 situated on posterolateral margin of terminal extensions of interlobar membrane. Distance between dorsal setae: c2:d2 60���64, d2:e2 68���72, e2:h3 96���102, h2:h2 98���102, h3: h3 80���84, ps1:ps1 60���64, ps1:h3 6���8, h3:ps 2 10���12. Epimerites fused as a Y, sternum about 1/2 of the total length of epimerites, area between anterior parts not sclerotized (Fig. 11 B). Rudimentary sclerites of epimerites IIa present. Epimerites IIIa long, their sclerotized areas large, with two acute extensions. Coxal fields IV closed. Genital apparatus enlarged posteriorly 25���27 �� 15���16; paragenital apodemes absent; genital shield small, poorly sclerotized, bearing setae g. Adanal shield entire, bowshaped, with tips not extending to level of adanal suckers, bearing setae ps3. Adanal suckers slightly oval, longitudinal diameter 18���20. Setae 4b situated anterior to level of setae 3a. Setae 1a represented by macrosetae extending to midlevel of terminal cleft; setae 4b short filiform, extending to level of setae g; setae 3a extending to level of lobar apices. Distance between ventral setae: 4b:g 30���32, g:ps3 48���50, ps3:h3 105���110. Tarsus I with ventral setae la, ra filiform, setae wa and s slightly thickened basally (Fig. 12 A). Solenidion ��1 of genu I 95 ���100 long. Tarsus II with tongue-like ventral extension, seta s lanceolate at base, setae wa whip-shaped with membraneous extension in medial part (Fig. 12 B). Ambulacral disc I normally developed, with long triangular central sclerite; ambulacral disc II much smaller, nearly one fourth the length of disc I, central sclerite triangular; ambulacral discs III and IV strongly reduced. Legs III with tarsus and distal part of tibia extending beyond lobar apices. Tibia III without spine-like apical extension, 8 5���88 in length, seta kT not extending to midlevel of tarsus III (Figs. 11, 12 C). Tarsus III 75 ���80 long, with small spine-like apical process; setae w half as long as segment length; setae e, f situated approximately in middle of segment, e three times shorter than d. Tibia IV 56 ���58 long, without dorsal ridge; tarsus IV 27���29 long, with tridentate apex (Fig. 12 D). Length of ambulacral discs: I���25���26, II���7���8, III and IV���5���6. Female (range for 2 specimens). Idiosoma, length �� width, 370���380 �� 230���240, length of hysterosoma 220��� 235. Prodorsal shield pear-shaped, strongly narrowed in anterior part, without posterolateral extensions, with a pair of median ridges, median area with larger dots than in lateral areas, posterior margin bluntly rounded, extending to level of setae se, length along midline 95���100, greatest width 50���52 (Fig. 13 A). Scapular setae se, si situated on small circular fragments of prodorsal shield, setae se separated by 73���75. Opisthosoma widely rounded. Hysteronotal shield absent. Bow-like sclerites flanking dorsally bases of trochanters III, IV. Distance between dorsal setae c2:d2 82���86, d2:e2 92���96, e2:h3 48���50, h2:h2 72���75, h3:h3 48���52. Setae c2, d 2 25���30 long, setae e2 50 ���52 long, extending to level of setae h2. Epimerites I fused into a Y with very short sternum, area between free parts of epimerites not sclerotized (Fig. 13 B). Epigynum shaped as slightly curved sclerite, 13���15 �� 42���45, tips not extending to level of genital papillae, setae 4b situated on the tips of epigynum. Apodemes of oviporus short, extending slightly beyond level of trochanters III. Epimerites IIIa, IVa small. Setae 1a short filiform, not extending to epigynum. Length of setae: 3a, g 45���47, 4b 30���35, 4a about 95���105 long. Setae g and 3a situated at same transverse level. Distance between ventral setae: 4b:g 38���40, g:4a 70���75. Legs I, II as in male. Genual solenidion �� 1 I 52���55. Length of leg segments: tibia III 4 3���45, tarsus III 56 ���59, tibia IV 56 ���58, tarsus IV 72 ���74. Tarsi III, IV without ventral extensions (Fig. 13). Setae sR III filiform, 38���40 long; setae kT III filiform, shorter than corresponding tibiae; length of tibial solenidia: �� III, 33���35, �� IV 29���31. Setae w III, w IV, r IV thickened basally, with filiform apex; remaining setae of tarsi III, IV filiform. Ambulacral discs: I��� 24���25, II���15���16, III and IV���12���13 long. Ambulacral stalks of tarsi III, IV three times longer than corresponding discs. Seta d of tarsus III equal to and seta d of tarsus IV slightly longer than corresponding segments. Remarks. Trouessart (1885) briefly described this species from Strigops harboptilus without any illustrations. Gaud (1980) for the first time gave the drawings of male, but did not indicate whether he used a type specimen or newly collected samples. Type samples were not available for our study therefore the above description is made on the additional material from the type host and location., Published as part of Mironov, Sergey V., Ehrnsberger, Rainer & Dabert, Jacek, 2017, Feather mites of the genera Dubininia and Cacatualges (Acari: Xolalgidae) associated with parrots (Aves: Psittaciformes) of the Old World, pp. 451-490 in Zootaxa 4272 (4) on pages 467-470, DOI: 10.11646/zootaxa.4272.4.1, http://zenodo.org/record/800966, {"references":["Trouessart, E. L. (1885) Note sur le classification des Analgesiens et diagnoses d'especes et de genres nouveaux. Bulletin de la Societe d'Etudes Scientifiques d'Angers, 14, 46 - 89. [published in February, 1885 for year 1884]","Gaud, J. (1980) Acariens Sarcoptiformes plumicoles parasites sur les oiseaux Psittaciformes, Strigiformes et Caprimulgiformes en Afrique. Annales du Musee Royale de l'Afrique Centrale, Series in- 8 o, Sciences Zoolgiques, 230, 1 - 106.","Gaud, J. & Atyeo, W. T. (1981 a) La famille Xolalgidae Dubinin, nouveau statut (Sarcoptiformes plumicoles, Analgoidea). I. Sous-famille Ingrassiinae, n. sub. fam. Acarologia, 22, 63 - 79."]}