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Ixobrychiphilus n. gen. Zoobank: BEEDD67E-9954-4954-B469-32B6FE2B4ADE Diagnosis — Female: Small sized syringophilids (total body length 490 – 540). Gnathosoma. Hypostomal apex rounded, without protuberances. Lateral hypostomal teeth absent. Peritremes M-shaped with clearly visible chambers in each branch. Anterior tip of each movable cheliceral digit with 2 teeth. Stylophore rounded posteriorly. Idiosoma. Six pairs of propodonotal setae arranged 2-1-1-1-1. Setae d1 situated closer to d2 than to e2. Agenital series with 3 pairs of setae. Each pseudanal and genital series with 2 pairs of setae. All idiosomal setae smooth and whip-like. Legs. Legs I thicker than II. Antaxial and paraxial members claw pair subequal in size and shape, without basal angle. Apodemes I parallel, not fused to apodemes II. Legs with full complement of setae. Male: Unknown. Type species — Ixobrychiphilus wallacei n. sp. Etymology — The name " Ixobrychiphilus " is taken from the generic name of the host – Ixobrychus, and philus (Gr. phileo – lover of). Differential diagnosis — This new genus is morphologically similar to Niglarobia Kethley, 1970 associated with charadriiform birds. In females of both species, the lateral hypostomal teeth are absent; the apodemes I are parallel and not fused to the apodemes II; the stylophore is without large tip on the posterior margin. This new genus is distinguished by the following features: in females of Ixobrychiphilus, propodonotal setae are arranged 2-1-1- 1-1; legs I are thicker in comparison to legs II; legs I-IV are with full complement of setae, and claws of legs I-IV are without the basal angles. In females of Niglarobia, propodonotal setae are arranged 2-1- 1-2; legs I and II are equal in thickness; leg setae vsII are absent, and claws of legs I-IV are with the basal angles.

Ixobrychiphilus wallacei n. sp. (Figures 1 and 2) Zoobank: 8B7362D8-01C7-4376-B217-2EAE1B473E95 Description ��� Female: Total body length 500 in holotype (490 ��� 540 in 6 paratypes). Gnathosoma. Infracapitulum punctate. Movable cheliceral digit 115 (105 ��� 115) long. Each medial branch of peritremes with 1 chamber, each lateral branch with 4- 5 chambers. Stylophore punctate, with striate ornament, 150 (140 ��� 150) long. Idiosoma. Propodonotal shield weakly sclerotized, anterior and posterior margins indiscernible, bearing bases of setae vi, ve, si, se, and c1, surface of this shield punctate in middle part. Bases of setae se situated anterior to level of setae c1. Hysteronotal shield apunctate, situated between bases of setae d1 and e2, not fused to pygidial shield. Pygidial shield well sclerotized, apunctate, with incision on anterior margin. Setae f2 2.8���3.6 times longer than f1. Length ratio of setae ag1: ag2: ag3 1:1:1���1.5. Genital plate absent. Pseudanal setae ps1 and ps2 subequal in length. Genital setae g1 and g2 subequal in length. Legs. Coxal fields I-IV apunctate, well sclerotized. Fan-like setae p��� and p" of legs III and IV with 10 tines. Setae 4c about twice as long as 4b. All solenidia of leg I subequal in length. Lengths of setae: vi 30 (25 ��� 50), ve 80 (75 ��� 90), si 135 (120 ��� 135), se 195 (180 ��� 210), c1 180 (170 ��� 220), c2 180 (160 ��� 190), d1 120 (110 ��� 130), d2 145 (130 ��� 145), e2 115 (90 ��� 120), f1 30 (25 ��� 30), f2 85 (85 ��� 90), h1 20 (20 ��� 30), h2 310 (280 ��� 310), ps1 20 (15 ��� 25), ps2 (15 ��� 25), g1 30 (25 ��� 35), g2 30 (25 ��� 35), ag1 (70 ��� 80), ag2 (80 ��� 90), ag3 110 (80 ��� 120), l���RIII 40 (35 ��� 40), 4b (40 ��� 45), 4c (90). Male: Not found. Type material ��� Female holotype and 6 female paratypes (Reg. No. AMU-SYR.517) from quills of contour feathers of Ixobrychus cinnamomeus (Gmelin) (Pelecaniformes: Ardeidae), China, Middle Course of Yangtze River, 26 Sept. 1899, coll. G. Haberer. Type material deposition ��� All type specimens are deposited in the AMU, except 1 female paratype in the ZSM. Etymology ��� The species is named in honor of a British naturalist, biologist, explorer, and geographer, Alfred Russel Wallace., Published as part of Skoracki, M., Zmudzinski, M. & Solarczyk, P., 2017, Ixobrychiphilus, a new genus of the family Syringophilidae (Acariformes: Prostigmata), pp. 269-273 in Acarologia 57 (2) on pages 270-272, DOI: 10.1051/acarologia/20164155, http://zenodo.org/record/4640260

Ixobrychiphilus wallacei n. sp. (Figures 1 and 2) Zoobank: 8B7362D8-01C7-4376-B217-2EAE1B473E95 Description — Female: Total body length 500 in holotype (490 – 540 in 6 paratypes). Gnathosoma. Infracapitulum punctate. Movable cheliceral digit 115 (105 – 115) long. Each medial branch of peritremes with 1 chamber, each lateral branch with 4- 5 chambers. Stylophore punctate, with striate ornament, 150 (140 – 150) long. Idiosoma. Propodonotal shield weakly sclerotized, anterior and posterior margins indiscernible, bearing bases of setae vi, ve, si, se, and c1, surface of this shield punctate in middle part. Bases of setae se situated anterior to level of setae c1. Hysteronotal shield apunctate, situated between bases of setae d1 and e2, not fused to pygidial shield. Pygidial shield well sclerotized, apunctate, with incision on anterior margin. Setae f2 2.8–3.6 times longer than f1. Length ratio of setae ag1: ag2: ag3 1:1:1–1.5. Genital plate absent. Pseudanal setae ps1 and ps2 subequal in length. Genital setae g1 and g2 subequal in length. Legs. Coxal fields I-IV apunctate, well sclerotized. Fan-like setae p’ and p" of legs III and IV with 10 tines. Setae 4c about twice as long as 4b. All solenidia of leg I subequal in length. Lengths of setae: vi 30 (25 – 50), ve 80 (75 – 90), si 135 (120 – 135), se 195 (180 – 210), c1 180 (170 – 220), c2 180 (160 – 190), d1 120 (110 – 130), d2 145 (130 – 145), e2 115 (90 – 120), f1 30 (25 – 30), f2 85 (85 – 90), h1 20 (20 – 30), h2 310 (280 – 310), ps1 20 (15 – 25), ps2 (15 – 25), g1 30 (25 – 35), g2 30 (25 – 35), ag1 (70 – 80), ag2 (80 – 90), ag3 110 (80 – 120), l’RIII 40 (35 – 40), 4b (40 – 45), 4c (90). Male: Not found. Type material — Female holotype and 6 female paratypes (Reg. No. AMU-SYR.517) from quills of contour feathers of Ixobrychus cinnamomeus (Gmelin) (Pelecaniformes: Ardeidae), China, Middle Course of Yangtze River, 26 Sept. 1899, coll. G. Haberer. Type material deposition — All type specimens are deposited in the AMU, except 1 female paratype in the ZSM. Etymology — The species is named in honor of a British naturalist, biologist, explorer, and geographer, Alfred Russel Wallace.

Ixobrychiphilus n. gen. Zoobank: BEEDD67E-9954-4954-B469-32B6FE2B4ADE Diagnosis ��� Female: Small sized syringophilids (total body length 490 ��� 540). Gnathosoma. Hypostomal apex rounded, without protuberances. Lateral hypostomal teeth absent. Peritremes M-shaped with clearly visible chambers in each branch. Anterior tip of each movable cheliceral digit with 2 teeth. Stylophore rounded posteriorly. Idiosoma. Six pairs of propodonotal setae arranged 2-1-1-1-1. Setae d1 situated closer to d2 than to e2. Agenital series with 3 pairs of setae. Each pseudanal and genital series with 2 pairs of setae. All idiosomal setae smooth and whip-like. Legs. Legs I thicker than II. Antaxial and paraxial members claw pair subequal in size and shape, without basal angle. Apodemes I parallel, not fused to apodemes II. Legs with full complement of setae. Male: Unknown. Type species ��� Ixobrychiphilus wallacei n. sp. Etymology ��� The name " Ixobrychiphilus " is taken from the generic name of the host ��� Ixobrychus, and philus (Gr. phileo ��� lover of). Differential diagnosis ��� This new genus is morphologically similar to Niglarobia Kethley, 1970 associated with charadriiform birds. In females of both species, the lateral hypostomal teeth are absent; the apodemes I are parallel and not fused to the apodemes II; the stylophore is without large tip on the posterior margin. This new genus is distinguished by the following features: in females of Ixobrychiphilus, propodonotal setae are arranged 2-1-1- 1-1; legs I are thicker in comparison to legs II; legs I-IV are with full complement of setae, and claws of legs I-IV are without the basal angles. In females of Niglarobia, propodonotal setae are arranged 2-1- 1-2; legs I and II are equal in thickness; leg setae vsII are absent, and claws of legs I-IV are with the basal angles., Published as part of Skoracki, M., Zmudzinski, M. & Solarczyk, P., 2017, Ixobrychiphilus, a new genus of the family Syringophilidae (Acariformes: Prostigmata), pp. 269-273 in Acarologia 57 (2) on page 270, DOI: 10.1051/acarologia/20164155, http://zenodo.org/record/4640260, {"references":["Kethley J. B. 1970 - A revision of the family Syringophilidae (Prostigmata: Acarina) - Contrib. Am. Entomol. Inst., 5: 1 - 76."]}