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Lestes tricolor Erichson, 1848 Fig. 12 (♂ —App), Fig. 24 (♂ —habitus), Fig. 32 (♀ —habitus), Fig. 37 (F— ♀ S8–10), Fig. 39 (F— ♀ basal plate), Fig. 40 (L— ♀ pectoral color pattern). Etymology: tricolor = tri, Latin for three + color, Latin for colored. Lestes tricolor Erichson, 1848: 585 (description and comparison with L. sponsa); Kirby 1890: 161 (data on species description and distribution); Selys 1862: 313 (description of male and female, distribution); Calvert 1909: 102 (key, data on distribution, illustration of appendages in lateral and dorsal views, thorax in ventral view); Jurzitza 1981: 117 (occurrence in Argentina); Davies & Tobin 1984: 34 (data on publication and distribution); Costa & Carneiro 1994: 305 (larva); Lencioni 2005: 100, Fig. 59(A–C) (data on description, data on type locality, data on type deposition, data on distribution, data on larval description, original illustration of appendages in lateral and dorsal views, thorax in ventral view from Calvert 1909); Costa et al. 2006: 60-61, Fig. 31 (pterothorax color pattern in ventral view, key for adult males); Lencioni 2006: 259 (larva, illustrations from Costa & Carneiro 1994); Garrison et al. 2010: 117 (data on species); Lencioni 2017: 115–116, Fig. 50A–D, 51A–B (data on description, type locality, type deposition, distribution, and larval description, appendages in lateral and mediodorsal views, female S 8–10 in lateral view, thorax in ventral view, male and female habitus). Types. Syntypes in MNHU (Examined). Larva described. Yes (Costa & Carneiro 1994). Material examined. (1 ♂ + 1 ♀): 1 ♂ + 1 ♀ Brazil: Espírito Santo — Flona do Rio Preto —P99, 23.iii.2005, K.S. Furieri, R. Kawada, R. & R.R. Silva leg. Distribution. Brazil ( Espírito Santo, Rio de Janeiro, Santa Catarina), Argentina (Misiones) and Guyana. Diagnostic characters. ♂ — Cercus in lateral view: basal 2/3 straight, apical 1/3 comma–like with a very narrow tip covered with long pale setae. Cercus in medioventral view: basal and apical expansions semicircular, without spines. Paraproct in lateral view: less than half the length of cercus. Paraproct in dorsal view: narrow and slightly triangular. ♀ —Basal plate: species belonging to basal plate group 1 (Fig. 38), with dorsal side longer than ventral side. Posterior side with ventral section twice the length of the dorsal section. Convex dorsal and ventral sides. Dorsal section of posterior side slightly concave (Fig. 39F). Pectoral color pattern as in Fig. 40L., Published as part of Lencioni, F. A. A., Neiss, U. G., Dutra, S. L., Furieri, K. S., Juen, L., Batista, J. D. & Vilela, Diogo S., 2021, Synopsis of Lestes from Brazil with description of Lestes demarcoi sp. nov (Zygoptera: Lestidae), pp. 511-541 in Zootaxa 4990 (3) on pages 522-523, DOI: 10.11646/zootaxa.4990.3.4, http://zenodo.org/record/5027008, {"references":["Erichson, W. F. (1848) Insecten. In: Schomburgk, R. (Ed.), Reisen in Britisch - Guiana in den Jahren 1840 - 1844. Im Auftrag Sr. Magestat des Konigs von Preussen. Vol. 3. Weber, Leipzig, pp. 533 - 617.","Kirby, W. F. (1890) A synonymic catalogue of Neuroptera Odonata, or Dragonflies With an appendix of fossil species. Gurney & Jackson, London, ix + 202 pp. https: // doi. org / 10.5962 / bhl. title. 5534","Selys Longchamps, E. de (1862) Synopsis des Agrionines Seconde legion: Lestes. Bulletin de l'Academie royale de Belgique, Series 2, 13, 288 - 338.","Calvert, P. P. (1909) Contributions to a knowledge of the Odonata of the Neotropical region, exclusive of Mexico and Central America. Annals of the Carnegie Museum, 6, 73 - 264.","Jurzitza, G. (1981) Lista provicional de los odonatos del Parque Nacional Iguazu, Provincia de Misiones, Republica Argentina. Notulae odonatologicae, 1 (7), 117 - 118.","Davies, D. A. L. & Tobin, P. (1984) The Dragonflies of the world: A systematic list of the extant species of Odonata Volume I Zygoptera, Anisozygoptera. Societas Internationalis Odonatologica Rapid Communication, 3 (Supplement), i - ix + 1 - 127.","Costa, J. M. & Carneiro, S. M. V. (1994) Duas novas larvas de Lestes Leach e dados morfologicos sobre Lestes pictus Hagen (Odonata: Zygoptera, Lestidae). Revista Brasileira de Zoologia, 11 (2), 303 - 309. https: // doi. org / 10.1590 / S 0101 - 81751994000200015","Lencioni, F. A. A. (2005) Damselflies of Brazil - An illustrated identification guide. I. Non-Coenagrionidae families. All Print Editora, Sao Paulo, iv + 324 pp.","Costa, J. M., Souza, L. O. I. & Muzon, J. (2006) Descriptions of three new species of Odonata from Brazil. Zootaxa, 1314 (1), 53 - 68. https: // doi. org / 10.11646 / zootaxa. 1314.1.4","Lencioni, F. A. A. (2006) Damselflies of Brazil - An illustrated identification guide. II. Coenagrionidae. All Print Editora. Sao Paulo, viii + 419 pp.","Garrison, R. W., von Ellenrieder, N. & Louton, J. A. (2010) Damselfly Genera of the New World: An Illustrated and Annotated Key to the Zygoptera. The Johns Hopkins University Press, Baltimore, Maryland, 490 pp.","Lencioni, F. A. A. (2017) Damselflies of Brazil - An illustrated identification guide - Southeast Region. E-book, 559 pp."]}

Lestes jurzitzai Muzón, 1994 Fig. 07 (♂ App), Fig. 20 (♂ —habitus), Fig. 40 (G— ♂ pectoral color pattern). Etymology: jurzitzai , named after Dr. Gerhard Jurzitza (b.1929—d.2014). Lestes jurzitzai Muzón, 1994: 298, Figs. 1 (A–B), 2(A–F) (description of male and female, illustrations of male thorax in lateral and ventral views, penis in ectal, lateral and posterior views, appendages in lateral, dorsal and ventral views); Lencioni 2005: 95, Fig. 54 (A–D) (data on description, data on type locality, data on type deposition, data on distribution, data on larval description, original illustration of appendages in lateral and mediodorsal view, thoracic illustrations from Muzón, 1994); Costa et al. 2006: 60–61, Fig. 27, 28 (appendages dorsal view, pterothorax color pattern in ventral view, key for adult males); Garrison et al. 2010: 117, Fig. 500 (data on species, original illustration of head in dorsal view). Types. Holotype in MNRJ (not examined, destroyed by fire in 2.ix.2018), Allotype in FSCA (not examined). Larva described. No. Material examined. (1 ♂): Lestes jurzitzai: BRAZIL, Rondônia, ponds near Fernandes Trail, Linea C –16, elev. 500 feet, 1 km N of Cacaulândia on B–65, 16.xi.1991, M. J. Westfall, Jr. leg. (in FSCA). Distribution. Brazil ( Rondônia) and Bolivia. Diagnostic characters. ♂ —Cercus in lateral view: basal 2/3 straight, with the apical 1/3 forming an obtuse angle, tip round, basal spine visible. Cercus in mediodorsal view: base of cercus with a short distally–directed spine, medial expansion same width of the base, straight and with a few spinules at the apical end. Paraproct in lateral view: more than 3/4 the length of cercus, finger–like with a blunt tip. Paraproct in dorsal view: finger–like with a round excavation at the tip. ♀ —Basal plate not illustrated in Muzón (1994), pectoral color pattern as Fig. 40G., Published as part of Lencioni, F. A. A., Neiss, U. G., Dutra, S. L., Furieri, K. S., Juen, L., Batista, J. D. & Vilela, Diogo S., 2021, Synopsis of Lestes from Brazil with description of Lestes demarcoi sp. nov (Zygoptera: Lestidae), pp. 511-541 in Zootaxa 4990 (3) on pages 518-519, DOI: 10.11646/zootaxa.4990.3.4, http://zenodo.org/record/5027008, {"references":["Muzon, J. (1994) Lestes jurzitzai spec nov, a new damselfly from Rondonia, Brazil (Zygoptera: Lestidae). Odonatologica, 23 (3), 297 - 302.","Lencioni, F. A. A. (2005) Damselflies of Brazil - An illustrated identification guide. I. Non-Coenagrionidae families. All Print Editora, Sao Paulo, iv + 324 pp.","Costa, J. M., Souza, L. O. I. & Muzon, J. (2006) Descriptions of three new species of Odonata from Brazil. Zootaxa, 1314 (1), 53 - 68. https: // doi. org / 10.11646 / zootaxa. 1314.1.4","Garrison, R. W., von Ellenrieder, N. & Louton, J. A. (2010) Damselfly Genera of the New World: An Illustrated and Annotated Key to the Zygoptera. The Johns Hopkins University Press, Baltimore, Maryland, 490 pp."]}

Lestes bipupillatus Calvert, 1909 Fig. 2 (♂ —App), Fig. 16 (♂ —habitus), Fig. 40 (B— ♀ pectoral color pattern). Etymology: bipupillatus = bi, Latin for two + pupillatus, Latin for pupil, in reference to the color of the venter of thorax, which has two black, round spots. Lestes bipupillatus Calvert, 1909: 95, Figs.: 15, 21–22 (description of male and female, illustration of male thorax in ventral view, appendages in lateral and mediodorsal views); Davies & Tobin 1984: 31 (data on publication and distribution); Bridges 1994: (VII) 33 (data on publication, type depository, type locality and references); Costa & Carneiro 1994: 303 (larva); Lencioni 2005: 90, Fig. 49(A–C) (data on description, type locality, type deposition, distribution, larval description, original illustration of appendages in lateral and mediodorsal view, thorax in ventral view from Calvert 1909); Costa et al. 2006: 60–61, Fig. 21, 22 (appendages lateral and dorsal view, key for adult males); Garrison et al. 2010: 117, Fig. 517 (data on species with reference to larval description, original illustration of appendages in lateral view); Lencioni 2017: 103–104, Fig. 38A–C, 39A (data on description, type locality, type deposition, distribution, and larval description, appendages in lateral and mediodorsal views, thorax in ventral view, male habitus). Types. Syntypes in CM and MCZ (not examined). Larva described. Yes (Costa & Carneiro 1994). Material examined. (2 ♂♂): Brazil: Santa Catarina, Nova Teutonia (now Seara), 27º11’00” S & 52º13’00” W, 300–500 m, v.1972, Fritz Plaumann leg. Distribution. Brazil (Mato Grosso, Rio de Janeiro, São Paulo, Rio Grande do Sul, Santa Catarina), Venezuela and Argentina. Diagnostic characters. ♂ —Cercus in lateral view: proximal 3/5 straight with the distal 2/5 expanded and slightly bent ventrally, tip of cercus rounded. Cercus in mediodorsal view: base of cercus with a short distally–directed spine, medial expansion a little larger than the width of the base, semicircular, without spines and with sparse pale hair–like setae. Paraproct in lateral view: subequal to the cercus. Paraproct in dorsal view: long and narrow with a spoon–like tip. ♀ —Basal plate not illustrated in Calvert (1909), pectoral color pattern as in Fig. 40B., Published as part of Lencioni, F. A. A., Neiss, U. G., Dutra, S. L., Furieri, K. S., Juen, L., Batista, J. D. & Vilela, Diogo S., 2021, Synopsis of Lestes from Brazil with description of Lestes demarcoi sp. nov (Zygoptera: Lestidae), pp. 511-541 in Zootaxa 4990 (3) on page 514, DOI: 10.11646/zootaxa.4990.3.4, http://zenodo.org/record/5027008, {"references":["Calvert, P. P. (1909) Contributions to a knowledge of the Odonata of the Neotropical region, exclusive of Mexico and Central America. Annals of the Carnegie Museum, 6, 73 - 264.","Davies, D. A. L. & Tobin, P. (1984) The Dragonflies of the world: A systematic list of the extant species of Odonata Volume I Zygoptera, Anisozygoptera. Societas Internationalis Odonatologica Rapid Communication, 3 (Supplement), i - ix + 1 - 127.","Bridges, C. A. (1994) Catalogue of the family-group, genus-group and species-group names of the Odonata of the world. 3 rd Edition. C. A. Bridges, Urbana, Illinois, xlvi + 905 pp. https: // doi. org / 10.5962 / bhl. title. 15291","Costa, J. M. & Carneiro, S. M. V. (1994) Duas novas larvas de Lestes Leach e dados morfologicos sobre Lestes pictus Hagen (Odonata: Zygoptera, Lestidae). Revista Brasileira de Zoologia, 11 (2), 303 - 309. https: // doi. org / 10.1590 / S 0101 - 81751994000200015","Lencioni, F. A. A. (2005) Damselflies of Brazil - An illustrated identification guide. I. Non-Coenagrionidae families. All Print Editora, Sao Paulo, iv + 324 pp.","Costa, J. M., Souza, L. O. I. & Muzon, J. (2006) Descriptions of three new species of Odonata from Brazil. Zootaxa, 1314 (1), 53 - 68. https: // doi. org / 10.11646 / zootaxa. 1314.1.4","Garrison, R. W., von Ellenrieder, N. & Louton, J. A. (2010) Damselfly Genera of the New World: An Illustrated and Annotated Key to the Zygoptera. The Johns Hopkins University Press, Baltimore, Maryland, 490 pp.","Lencioni, F. A. A. (2017) Damselflies of Brazil - An illustrated identification guide - Southeast Region. E-book, 559 pp."]}

Lencioni, F.A.A., Neiss, U.G., Dutra, S.L., Furieri, K.S., Juen, L., Batista, J.D., Vilela, Diogo S. (2021): Synopsis of Lestes from Brazil with description of Lestes demarcoi sp. nov (Zygoptera: Lestidae). Zootaxa 4990 (3): 511-541, DOI: https://doi.org/10.11646/zootaxa.4990.3.4

Lestes quadristriatus Calvert, 1909 Fig. 11 (♂ —App), Fig. 40 (K— ♂ pectoral color pattern). Etymology: quadristriatus = quadri, Latin for four + striatus, Latin for striped. Lestes quadristriatus Calvert, 1909: 104, Figs.: 13, 35–36 (description of male and female, illustration of male thorax in ventral view, appendages in lateral and mediodorsal views); Davies & Tobin 1984: 33 (data on publication and distribution); Lencioni 2005: 99, Fig. 58(A–C) (data on description, data on type locality, data on type deposition, data on distribution, data on larval description, illustration of appendages in lateral and dorsal views, thorax in ventral view from Calvert, 1909); Costa et al. 2006: 60–61, Fig. 35 (pterothorax color pattern in ventral view, key for adult males); Garrison et al. 2010: 117 (data on species). Types. Syntypes in CM (not examined). Larva described. No. Distribution. Brazil ( Mato Grosso). Diagnostic characters. ♂ —Cercus in lateral view: basal 2/3 straight with a basal semicircular expansion, apical 1/3 triangular. Cercus in mediodorsal view: base of cercus without spine, medial expansion forming two semicircular plates, the anterior larger and without spines, the posterior smaller and with spines. Paraproct: lost. ♀ —Basal plate not illustrated in Calvert (1909), pectoral color pattern as Fig. 40K., Published as part of Lencioni, F. A. A., Neiss, U. G., Dutra, S. L., Furieri, K. S., Juen, L., Batista, J. D. & Vilela, Diogo S., 2021, Synopsis of Lestes from Brazil with description of Lestes demarcoi sp. nov (Zygoptera: Lestidae), pp. 511-541 in Zootaxa 4990 (3) on page 522, DOI: 10.11646/zootaxa.4990.3.4, http://zenodo.org/record/5027008, {"references":["Calvert, P. P. (1909) Contributions to a knowledge of the Odonata of the Neotropical region, exclusive of Mexico and Central America. Annals of the Carnegie Museum, 6, 73 - 264.","Davies, D. A. L. & Tobin, P. (1984) The Dragonflies of the world: A systematic list of the extant species of Odonata Volume I Zygoptera, Anisozygoptera. Societas Internationalis Odonatologica Rapid Communication, 3 (Supplement), i - ix + 1 - 127.","Lencioni, F. A. A. (2005) Damselflies of Brazil - An illustrated identification guide. I. Non-Coenagrionidae families. All Print Editora, Sao Paulo, iv + 324 pp.","Costa, J. M., Souza, L. O. I. & Muzon, J. (2006) Descriptions of three new species of Odonata from Brazil. Zootaxa, 1314 (1), 53 - 68. https: // doi. org / 10.11646 / zootaxa. 1314.1.4","Garrison, R. W., von Ellenrieder, N. & Louton, J. A. (2010) Damselfly Genera of the New World: An Illustrated and Annotated Key to the Zygoptera. The Johns Hopkins University Press, Baltimore, Maryland, 490 pp."]}

Lestes demarcoi sp. nov. Lencioni & Neiss Fig. 14 (♂ —App), Fig. 26 (♂ —habitus), Fig. 34 (♀ —habitus), Fig. 35 (Head), Fig. 36 (Thorax), Fig. 37 (H— ♀ S8–S10), Fig. 38 (H— ♀ basal plate), Fig. 40 (N— ♀ pectoral color pattern), Fig. 41 (Penis). Holotype. ♂ (UFPA, NC 4725), Brazil: Amazonas State: Manaus; Reserva Adolpho Ducke, puddle with leaves, Acará trail, collected in tandem with the allotype, 02º55’46”S & 59º58’22”W, 62 m. a.s.l., 13–IV–2009, U.G. Neiss leg. Paratype. 1 ♂ (FAAL, NC 4324); Brazil: Amazonas State: Manaus, Acamp. Colosso, Paulo De Marco Jr. leg. Allotype ♀ (UFPA), same data as holotype. Etymology. We named this species in honor of Prof. Dr. Paulo De Marco Júnior, professor at the Universidade Federal de Goiás, friend and encourager of the work of all authors, and mainly for his dedication to science in the last four decades. Description of holotype. Head. Labrum and anteclypeus sky blue, genae and outer surface of mandible greenish–blue, postclypeus dark brown to black, epicranium anterior 2/3 (up to the level of lateral ocellus) black with metallic green reflections, posterior 1/3 reddish–brown (Fig. 35A), rear of head pale yellow, antennae: scape, ventral half of pedicel and flagellum brown, dorsal half of pedicel black (Fig. 35A). Labium and maxillae pale yellow. Thorax. Prothorax brown, with two pale blue spots on each side (Fig. 35A); pterothorax: middorsal carina brown, followed by a brown middorsal stripe which is followed by a black with green metallic reflections stripe, which is followed by a narrow brown stripe followed by a broad pale blue stripe limited ventrally by the mesopleural suture; metepisternum brown, metepimeron, metinfraepisternum pale blue (Fig. 36A). Legs: coxae pale blue, external surface of femora, tarsi and tarsal claws black, external surface of tibiae and internal surface of femora and tibiae pale. Abdomen. S1–S8 dorsally black with the exception of basal 2/3 of S1 blue, a narrow pale medial line in S2 and a pale basal annulus in S2–8, bluish laterally, S9 dark brown dorso–laterally with 2 pale dots in each side, S10 dark brown. Penis as in Fig. 41. Appendages black. Measurements (in mm). Total length (incl. apps) 44: abdomen (incl. apps) 35, hindwing 22, cerci 2.00, paraprocts 0.8. Description of allotype. Head. Labrum sky blue, genae and outer surface of mandible greenish–blue, anteclypeus dark blue, postclypeus dark brown to black, epicranium anterior 2/3 (up to the level of lateral ocellus) black with metallic green reflections, posterior 1/3 reddish brown (Fig. 35B), rear of head pale, antennae: scape, ventral 3/5 of pedicel pale, 2/5 dorsal of pedicel and flagellum brown, (Fig. 35B). Labium and maxillae pale. Thorax. Prothorax and thorax as in holotype (Fig. 36B). Legs: coxae pale blue, external surface of femora pale with a fine black longitudinal line, tibiae pale, tarsi and tarsal claws black, internal surface of femora and tibiae pale. Abdomen. S1–8 dorsally dark brown to black with the exception of basal 1/3 of S1 blue, a narrow pale basal annulus in S2–8, S1–8 bluish laterally, S3–6 the dark dorsal area expanded laterally near the apex, in S7 the dark dorsal area expanded laterally in both extremities, S9–10 dark brown. Valves of ovipositor brown and cerci black. Measurements (in mm). Total length (incl. apps) 42: abdomen 33, hindwing 23. Differential diagnosis. The easiest character to separate all Brazilian species from Lestes demarcoi is, the male’s cerci. Using this character, males of the new species form a cohesive group with L. falcifer and L. pictus, but in L. demarcoi the cercus is much longer than the length of S10, compared with the other two species. The paraproct of L. demarcoi is shorter than half the length of the cercus, while in the other two species is longer. In mediodorsal view, the apical portion of the cercus of L. demarcoi is ovoid while in the other two is finger–like. We suggest caution in determining Lestes females when they are collected not associated with males and we suggest the joint use of pectoral color patterns (Fig. 39) with the shape of the basal plates of the ovipositor (Fig. 38) for it. The female of the new species belongs, together with L. minutus, in a group where the posterior and ventral sides of the basal plate of ovipositor are divided in two sections each. Lestes demarcoi differs from L. minutus in having the posterior section of the ventral side smaller than the anterior section., Published as part of Lencioni, F. A. A., Neiss, U. G., Dutra, S. L., Furieri, K. S., Juen, L., Batista, J. D. & Vilela, Diogo S., 2021, Synopsis of Lestes from Brazil with description of Lestes demarcoi sp. nov (Zygoptera: Lestidae), pp. 511-541 in Zootaxa 4990 (3) on pages 524-525, DOI: 10.11646/zootaxa.4990.3.4, http://zenodo.org/record/5027008

Lestes pictus Hagen in Selys, 1862 Fig. 10 (♂ —App), Fig. 23 (♂ —habitus), Fig. 31 (♀ —habitus), Fig. 37 (E— ♀ S8–S10), Fig. 39 (E— ♀ basal plate), Fig. 40 (J— ♀ pectoral color pattern). Etymology: pictus = Latin for painted, decorated. Lestes picta Hagen in Selys, 1862: 314 (description of male and female, distribution); Kirby 1890: 161 (data on species description and distribution); Santos 1972: 77 (larva); Jurzitza 1981: 117 (occurrence in Argentina); Davies & Tobin 1984: 33 (data on publication and distribution); Costa & Carneiro 1994: 307 (larva); Lencioni 2005: 98, Fig. 57(A–C) (data on description, data on type locality, data on type deposition, data on distribution, data on larval description, illustration of appendages in lateral and dorsal views, thorax in ventral view from Calvert 1909); Costa et al. 2006: 60–61, Fig. 34 (pterothorax color pattern in ventral view, key for adult males); Lencioni 2006: 256 (larva, illustrations from Costa & Carneiro 1994); Garrison et al. 2010: 117, Figs.: 504, 514, 520 and 522 (data on species, original illustration of posterior hamule in lateral view, appendages in lateral and dorsal views, female S 8–10 in lateral view); Lencioni 2017: 113–114, Fig. 48A–E, 49A–B (data on description, type locality, type deposition, distribution, and larval description, appendages in lateral, mediodorsal and dorsal views, female S8-S 10 in lateral view, thorax in ventral view, male and female habitus). Types. Syntypes in MCZ (not examined). Larva described. Yes (Santos 1972, additions by Costa & Carneiro 1994). Material examined. (4 ♂♂ + 2 ♀♀): 1♂ Brazil: São Paulo, Rio Claro, Sítio Primavera, 31.xii.1995, F.A.A. Lencioni leg.; 1 ♂ + 1 ♀ Brazil: São Paulo, Salesópolis (brejo na margem do Rio Pardo), 28.ix.1996, (in tandem), F.A.A. Lencioni leg.; 2 ♂♂ + 1 ♀ Brazil: São Paulo, Santa Branca—Margem do Rio Paraíba do Sul, 06.xii.2008, E.A. Lencioni leg. Distribution. Brazil ( Mato Grosso, Espírito Santo, Rio de Janeiro, São Paulo), Peru and Argentina (Misiones). Diagnostic characters. ♂ — Cercus in lateral view: basal 1/4 straight, apical 3/4, formed by the fusion of medial and apical portions, almost rectangular. Cercus in mediodorsal view: base of cercus without spine, medial expansion almost completely fused with the apical portion of cercus, forming a roughly rectangular plate, with only a small apical tip. Paraproct in lateral view: more than half the size of the cercus, with a tuff of pale hair–like setae directed upward. Paraproct in dorsal view: finger–like. ♀ —Basal plate: species belonging to basal plate group 1 (Fig. 38), with dorsal side a little longer than ventral side. Posterior side with ventral section twice the length of the dorsal section. Dorsal side straight and ventral side slight convex (Fig. 39E). Pectoral color pattern as in Fig. 40J., Published as part of Lencioni, F. A. A., Neiss, U. G., Dutra, S. L., Furieri, K. S., Juen, L., Batista, J. D. & Vilela, Diogo S., 2021, Synopsis of Lestes from Brazil with description of Lestes demarcoi sp. nov (Zygoptera: Lestidae), pp. 511-541 in Zootaxa 4990 (3) on pages 521-522, DOI: 10.11646/zootaxa.4990.3.4, http://zenodo.org/record/5027008, {"references":["Selys Longchamps, E. de (1862) Synopsis des Agrionines Seconde legion: Lestes. Bulletin de l'Academie royale de Belgique, Series 2, 13, 288 - 338.","Kirby, W. F. (1890) A synonymic catalogue of Neuroptera Odonata, or Dragonflies With an appendix of fossil species. Gurney & Jackson, London, ix + 202 pp. https: // doi. org / 10.5962 / bhl. title. 5534","Santos, N. D. (1972) Contribuicao ao conhecimento da fauna do Estado da Guanabara 79 - descricao da ninfa de Lestes pictus Selys, 1862 (Odonata: Lestidae). Atas da Sociedade Biologica do Rio de Janeiro, 15 (2), 77 - 78.","Jurzitza, G. (1981) Lista provicional de los odonatos del Parque Nacional Iguazu, Provincia de Misiones, Republica Argentina. Notulae odonatologicae, 1 (7), 117 - 118.","Davies, D. A. L. & Tobin, P. (1984) The Dragonflies of the world: A systematic list of the extant species of Odonata Volume I Zygoptera, Anisozygoptera. Societas Internationalis Odonatologica Rapid Communication, 3 (Supplement), i - ix + 1 - 127.","Costa, J. M. & Carneiro, S. M. V. (1994) Duas novas larvas de Lestes Leach e dados morfologicos sobre Lestes pictus Hagen (Odonata: Zygoptera, Lestidae). Revista Brasileira de Zoologia, 11 (2), 303 - 309. https: // doi. org / 10.1590 / S 0101 - 81751994000200015","Lencioni, F. A. A. (2005) Damselflies of Brazil - An illustrated identification guide. I. Non-Coenagrionidae families. All Print Editora, Sao Paulo, iv + 324 pp.","Calvert, P. P. (1909) Contributions to a knowledge of the Odonata of the Neotropical region, exclusive of Mexico and Central America. Annals of the Carnegie Museum, 6, 73 - 264.","Costa, J. M., Souza, L. O. I. & Muzon, J. (2006) Descriptions of three new species of Odonata from Brazil. Zootaxa, 1314 (1), 53 - 68. https: // doi. org / 10.11646 / zootaxa. 1314.1.4","Lencioni, F. A. A. (2006) Damselflies of Brazil - An illustrated identification guide. II. Coenagrionidae. All Print Editora. Sao Paulo, viii + 419 pp.","Garrison, R. W., von Ellenrieder, N. & Louton, J. A. (2010) Damselfly Genera of the New World: An Illustrated and Annotated Key to the Zygoptera. The Johns Hopkins University Press, Baltimore, Maryland, 490 pp.","Lencioni, F. A. A. (2017) Damselflies of Brazil - An illustrated identification guide - Southeast Region. E-book, 559 pp."]}

Lestes minutus Selys, 1862 Fig. 08 (♂ —App), Fig. 21 (♂ —habitus), Fig. 29 (♀ —habitus), Fig. 37 (C— ♀ S8–S10), Fig. 39 (C— ♀ basal plate), Fig. 40 (H— ♀ pectoral color pattern). Etymology: minutus = Latin for minute, tiny. Lestes minuta Selys, 1862: 305 (description of male, distribution); Kirby 1890: 161 (data on species description and distribution); Davies & Tobin 1984: 32 (data on publication and distribution); De Marmels 1990: 336 (presence in Venezuela as L. mediorufus Calvert, 1909); Bridges, 1994: (VII) 155 (data on publication, type depository, type locality and references); Lencioni 2005: 96, Fig. 55 (A–C) (data on description, data on type locality, data on type deposition, data on distribution, data on larval description, synonymy with L. mediorufus, illustrations of appendages in lateral and mediodorsal views, thorax in ventral view form Calvert 1909); Costa et al. 2006: 60–61, Fig. 26 (appendages dorsal view, key for adult males); Garrison et al. 2010: 117 (data on species); Lencioni 2017: 109–110, Fig. 44A–E, 45A–B (data on description, type locality, type deposition, distribution, and larval description, appendages in lateral, mediodorsal and dorsal views, female S 8–10 in lateral view, thorax in ventral view, male and female habitus). Types. Syntypes in IRSNB (examined). Larva described. No. Material examined. (2 ♂♂ + 1 ♀): 1 ♀ Brazil: São Paulo, São Paulo, Av Itacira, 42, 06.i.2001, F.A.A. Lencioni leg.; 1 ♂ Venezuela: Edo Bolivar, small stream and ponds, 7 km E of Parupa (PN Canaima), 1200m, 1–3.viii.1987, T. W. Donnelly leg.; 1 ♂ Brazil: Goiás, Parque Nacional da Chapada dos Veadeiros, 23.vi.2008, S.L. Dutra & M.C. Almeida leg. Synonyms. Lestes mediorufus Calvert, 1909 (Lencioni 2005). Distribution. Brazil ( Roraima, Goiás, Mato Grosso, São Paulo), Venezuela and Trinidad. Diagnostic characters. ♂ —Cercus in lateral view: basal 2/3 straight with the apical 1/3 forming an almost right angle, tip rounded, medial expansion visible, rectangular, with the apical edge of the bottom margin with a long spine. Cercus in mediodorsal view: base of cercus with a short distally–directed spine, medial expansion a little wider than the base with the mesal edge concave and covered with spine–like setae. Paraproct in lateral view: 4/5 the length of cercus, finger–like with the tip little expanded and covered with pale setae. Paraproct in dorsal view: finger–like with a spoon–like tip. ♀ —Basal plate: species belonging to basal plate group 3 (Fig. 38), with dorsal side twice the length of the dorsal section of posterior side. Dorsal section of posterior side and posterior section of ventral side subequal (Fig. 39C). Pectoral color pattern as Fig. 40H., Published as part of Lencioni, F. A. A., Neiss, U. G., Dutra, S. L., Furieri, K. S., Juen, L., Batista, J. D. & Vilela, Diogo S., 2021, Synopsis of Lestes from Brazil with description of Lestes demarcoi sp. nov (Zygoptera: Lestidae), pp. 511-541 in Zootaxa 4990 (3) on pages 519-520, DOI: 10.11646/zootaxa.4990.3.4, http://zenodo.org/record/5027008, {"references":["Selys Longchamps, E. de (1862) Synopsis des Agrionines Seconde legion: Lestes. Bulletin de l'Academie royale de Belgique, Series 2, 13, 288 - 338.","Kirby, W. F. (1890) A synonymic catalogue of Neuroptera Odonata, or Dragonflies With an appendix of fossil species. Gurney & Jackson, London, ix + 202 pp. https: // doi. org / 10.5962 / bhl. title. 5534","Davies, D. A. L. & Tobin, P. (1984) The Dragonflies of the world: A systematic list of the extant species of Odonata Volume I Zygoptera, Anisozygoptera. Societas Internationalis Odonatologica Rapid Communication, 3 (Supplement), i - ix + 1 - 127.","De Marmels, J. (1990) An updated checklist of the Odonata of Venezuela. Odonatologica, 19 (4), 333 - 345.","Calvert, P. P. (1909) Contributions to a knowledge of the Odonata of the Neotropical region, exclusive of Mexico and Central America. Annals of the Carnegie Museum, 6, 73 - 264.","Bridges, C. A. (1994) Catalogue of the family-group, genus-group and species-group names of the Odonata of the world. 3 rd Edition. C. A. Bridges, Urbana, Illinois, xlvi + 905 pp. https: // doi. org / 10.5962 / bhl. title. 15291","Lencioni, F. A. A. (2005) Damselflies of Brazil - An illustrated identification guide. I. Non-Coenagrionidae families. All Print Editora, Sao Paulo, iv + 324 pp.","Costa, J. M., Souza, L. O. I. & Muzon, J. (2006) Descriptions of three new species of Odonata from Brazil. Zootaxa, 1314 (1), 53 - 68. https: // doi. org / 10.11646 / zootaxa. 1314.1.4","Garrison, R. W., von Ellenrieder, N. & Louton, J. A. (2010) Damselfly Genera of the New World: An Illustrated and Annotated Key to the Zygoptera. The Johns Hopkins University Press, Baltimore, Maryland, 490 pp.","Lencioni, F. A. A. (2017) Damselflies of Brazil - An illustrated identification guide - Southeast Region. E-book, 559 pp."]}

Lestes auritus Hagen in Selys, 1862 Fig. 1 (♂ —App), Fig. 15 (♂ —habitus), Fig. 40 (A— ♀ pectoral color pattern). Etymology: auritus = Latin for having ears or having the form of an ear, probably by the semi–circular shape of the base of superior appendages. Lestes aurita Hagen in Selys, 1862: 312 [28 reprint] (description of male, compared with L. minuta); Kirby 1890: 161 (data on species description and distribution); Calvert 1909: 92 (Key); Davies & Tobin 1984: 31 (data on publication and distribution); Bridges 1994: (VII) 25 (data on publication, type depository, type locality and references); Muzón 1997: 02, Figs.: 1–12 (designation of lectotype with description of the male specimen, description of female, illustration of penis in ectal and lateral view, appendages in lateral, ventral and dorsal view, detail of subapical fossae of appendages in laterodorsal view, color pattern of: head in dorsal view, thorax in lateral and ventral views of male and female); Lencioni 2005: 89, Fig. 48(A–H) (data on description, type locality, type deposition, distribution, and larval description, diagnostic illustration of appendages in lateral and mediodorsal views, and color pattern from Muzón 1997); Costa et al. 2006: 60–61, Fig. 32 (pterothorax color pattern in ventral view, key for adult males); Garrison et al. 2010: 117 (data on species); Lencioni 2017: 101–102, Fig. 36A–H, 37A (data on description, type locality, type deposition, distribution, and larval description, appendages in lateral and mediodorsal views, color pattern of: head in dorsal view, thorax in lateral and ventral views of male and female from Muzón 1997, male habitus). Types. Lectotype in MNHU (not examined). Larva described. No. Material examined. (1 ♂): Lestes auritus: BRAZIL, Santa Catarina, Nova Teutônia (now Seara), elev. 500 m, iii.1975, Fritz Plaumann leg (in Collection of K.J. Tennessen). Distribution. Brazil ( Minas Gerais, Rio de Janeiro, Santa Catarina) and Argentina (Missiones). Diagnostic characters. ♂ —Cercus in lateral view: basal half straight, distal half forming an obtuse angle with the basal half, the tip of cercus roughly triangular. Cercus in mediodorsal view: base of cercus without spine, medial expansion of cercus almost twice the width of the base and semicircular, without any long spine (some short spinules at the distal part), tip of cercus with sparse hair––like setae. Paraproct in lateral view: less than half the size of the cercus, with a tuff of pale setae directly upward. Paraproct in dorsal view: almost triangular with a spoon–like tip. ♀ —Basal plate not illustrated in Muzón (1997), pectoral color pattern as in Fig. 40A., Published as part of Lencioni, F. A. A., Neiss, U. G., Dutra, S. L., Furieri, K. S., Juen, L., Batista, J. D. & Vilela, Diogo S., 2021, Synopsis of Lestes from Brazil with description of Lestes demarcoi sp. nov (Zygoptera: Lestidae), pp. 511-541 in Zootaxa 4990 (3) on pages 513-514, DOI: 10.11646/zootaxa.4990.3.4, http://zenodo.org/record/5027008, {"references":["Selys Longchamps, E. de (1862) Synopsis des Agrionines Seconde legion: Lestes. Bulletin de l'Academie royale de Belgique, Series 2, 13, 288 - 338.","Kirby, W. F. (1890) A synonymic catalogue of Neuroptera Odonata, or Dragonflies With an appendix of fossil species. Gurney & Jackson, London, ix + 202 pp. https: // doi. org / 10.5962 / bhl. title. 5534","Calvert, P. P. (1909) Contributions to a knowledge of the Odonata of the Neotropical region, exclusive of Mexico and Central America. Annals of the Carnegie Museum, 6, 73 - 264.","Davies, D. A. L. & Tobin, P. (1984) The Dragonflies of the world: A systematic list of the extant species of Odonata Volume I Zygoptera, Anisozygoptera. Societas Internationalis Odonatologica Rapid Communication, 3 (Supplement), i - ix + 1 - 127.","Bridges, C. A. (1994) Catalogue of the family-group, genus-group and species-group names of the Odonata of the world. 3 rd Edition. C. A. Bridges, Urbana, Illinois, xlvi + 905 pp. https: // doi. org / 10.5962 / bhl. title. 15291","Muzon, J. (1997) Redescripcion de Lestes auritus y Lestes paulistus y descripcion del ultimo estadio larval de L. undulatus (Odonata: Lestidae). Revista de la Sociedad Entomologica Argentina, 56 (1 - 4), 159 - 166.","Lencioni, F. A. A. (2005) Damselflies of Brazil - An illustrated identification guide. I. Non-Coenagrionidae families. All Print Editora, Sao Paulo, iv + 324 pp.","Costa, J. M., Souza, L. O. I. & Muzon, J. (2006) Descriptions of three new species of Odonata from Brazil. Zootaxa, 1314 (1), 53 - 68. https: // doi. org / 10.11646 / zootaxa. 1314.1.4","Garrison, R. W., von Ellenrieder, N. & Louton, J. A. (2010) Damselfly Genera of the New World: An Illustrated and Annotated Key to the Zygoptera. The Johns Hopkins University Press, Baltimore, Maryland, 490 pp.","Lencioni, F. A. A. (2017) Damselflies of Brazil - An illustrated identification guide - Southeast Region. E-book, 559 pp."]}

Lestes paulistus Calvert, 1909 Fig. 09 (♂ —App), Fig. 22 (♂ —habitus), Fig. 30 (♀ —habitus), Fig. 37 (D— ♀ S8–S10), Fig. 39 (D— ♀ basal plate), Fig. 40 (I— ♀ pectoral color pattern), Fig. 44 (♂ —live photo). Etymology: paulistus = in reference to the State of São Paulo. Lestes paulistus Calvert, 1909: 99, Figs. 14, 25–26 (description of male, illustration of male thorax in ventral view, appendages in lateral and mediodorsal views); Jurzitza 1981: 117 (occurrence in Argentina); Davies & Tobin 1984: 33 (data on publication and distribution); Bridges 1994: (VII) 181 (data on publication, type depository, type locality and references); Muzón 1997: 02, Figs.: 13–18 (description of female, color pattern of: head in dorsal view, thorax in lateral and ventral views of male and female); Lencioni 2005: 97, Fig. 56(A–C) (data on description, data on type locality, data on type deposition, data on distribution, data on larval description, illustration of appendages in lateral and dorsal views, thorax in ventral view from Calvert 1909); Costa et al. 2006: 60–61, Fig. 29 (pterothorax color pattern in ventral view, key for adult males); Garrison et al. 2010: 117 (data on species); Lencioni 2017: 111–112, Fig. 46A–E, 47A–D, DL-03 (data on description, type locality, type deposition, distribution, and larval description, appendages in lateral, mediodorsal and dorsal views, female S8-S 10 in lateral view, thorax in ventral view, male and female habitus, male and female thorax in lateral view, live photo). Types. Syntypes in ANS (not examined). Larva described. No. Material examined. (40 ♂♂ + 6 ♀♀): 3 ♂, Brazil: São Paulo, Jacareí, Fazenda Santana do Rio Abaixo, 18.i.1996, F.A.A. Lencioni leg.; 3 ♂♂, Brazil: São Paulo, Jacareí, Fazenda Santana do Rio Abaixo, 10.xi.1996, F.A.A. Len- cioni leg.; 1 ♂, Brazil: São Paulo, Jacareí, Fazenda Santana do Poço, 08.xii.1998, F. Lencioni leg.; 1 ♂ + 1 ♀, Brazil: São Paulo, Jacareí, Fazenda Santana do Rio Abaixo, 29.viii.1999, (in tandem), F.A.A. Lencioni & F. Lencioni leg.; 1 ♂, Brazil: São Paulo, Jacareí, Fazenda Santana do Rio Abaixo, 29.viii.1999, F.A.A. Lencioni & F. Lencioni leg.; 2 ♂♂, Brazil: São Paulo, Jacareí, Fazenda Santana do Rio Abaixo, 01.ix.1999, F.A.A. Lencioni leg.; 1 ♂, Brazil: São Paulo, Jacareí, Fazenda Santana do Rio Abaixo, 27.xi.1999, F.A.A. Lencioni leg.; 1 ♂, Brazil: São Paulo, Jacareí, Fazenda Santana do Rio Abaixo, 26.viii.2000, F.A.A. Lencioni leg.; 1 ♂ + 1 ♀, Brazil: São Paulo, Jacareí, Fazenda Santana do Rio Abaixo, 26.viii.2000, (in tandem), F.A.A. Lencioni leg.; 1 ♂, Brazil: São Paulo, Jacareí, Fazenda Santana do Rio Abaixo, 02.xi.2000, F.A.A. Lencioni leg.; 2 ♂♂ + 2 ♀♀, Brazil: São Paulo, Jacareí, Fazenda San- tana do Rio Abaixo, 23.xii.2000, F. Lencioni leg.; 1 ♂, Brazil: São Paulo, Jacareí, Fazenda Santana do Rio Abaixo, 04.iii.2001, F. Lencioni leg.; 6 ♂, Brazil: São Paulo, Jacareí, Fazenda Santana do Rio Abaixo, 23º14’ 55” S & 46º00’ 27” W, 569 m, 01.ix.2001, F.A.A. Lencioni leg.; 3 ♂♂, Brazil: São Paulo, Luiz Antônio, Represa Vassununga, 07.ix.2001, F.A.A. Lencioni leg.; 3 ♂♂, Brazil: São Paulo, Luiz Antônio, Represa Beija Flor, 08.ix.2001, F.A.A. Lencioni leg.; 1 ♂, Brazil: São Paulo, Jacareí, Fazenda Santana do Rio Abaixo, 20.x.2001, F. Lencioni leg.; 6 ♂♂ + 1 ♀, Brazil: São Paulo, Jacareí, Fazenda Santana do Rio Abaixo, 12.x.2002, F.A.A. Lencioni leg.; 3 ♂♂ + 1 ♀, Brazil: São Paulo, Jacareí, Fazenda Santana do Rio Abaixo, 26.xii.2002, F. Lencioni leg. Distribution. Brazil ( São Paulo, Mato Grosso), Uruguay and Argentina (Misiones). Diagnostic characters. ♂ —Cercus in lateral view: basal 3/4 straight with a ventral triangular expansion a little before its half which partially covers the medial expansion, apical 1/4 forming an obtuse angle, the tip of cercus rounded. Cercus in mediodorsal view: base of cercus with a short distally–directed spine, medial expansion a little wider than the base, with the mesal edge slightly convex, and the apical half–covered with spinules. Paraproct in lateral view: more than half the length of cercus, narrow. Paraproct in dorsal view: narrow with a rounded tip. ♀ —Basal plate: species belonging to basal plate group 2 (Fig. 38), with dorsal side more than twice the length of ventral side. Dorsal side with anterior 1/2 slight convex and posterior 1/2 concave, the junction of the dorsal and posterior side forming an acute process directed slight upward, posterior side little longer than ventral side (Fig. 39D). Pectoral color pattern as Fig. 40I., Published as part of Lencioni, F. A. A., Neiss, U. G., Dutra, S. L., Furieri, K. S., Juen, L., Batista, J. D. & Vilela, Diogo S., 2021, Synopsis of Lestes from Brazil with description of Lestes demarcoi sp. nov (Zygoptera: Lestidae), pp. 511-541 in Zootaxa 4990 (3) on pages 520-521, DOI: 10.11646/zootaxa.4990.3.4, http://zenodo.org/record/5027008, {"references":["Calvert, P. P. (1909) Contributions to a knowledge of the Odonata of the Neotropical region, exclusive of Mexico and Central America. Annals of the Carnegie Museum, 6, 73 - 264.","Jurzitza, G. (1981) Lista provicional de los odonatos del Parque Nacional Iguazu, Provincia de Misiones, Republica Argentina. Notulae odonatologicae, 1 (7), 117 - 118.","Davies, D. A. L. & Tobin, P. (1984) The Dragonflies of the world: A systematic list of the extant species of Odonata Volume I Zygoptera, Anisozygoptera. Societas Internationalis Odonatologica Rapid Communication, 3 (Supplement), i - ix + 1 - 127.","Bridges, C. A. (1994) Catalogue of the family-group, genus-group and species-group names of the Odonata of the world. 3 rd Edition. C. A. Bridges, Urbana, Illinois, xlvi + 905 pp. https: // doi. org / 10.5962 / bhl. title. 15291","Muzon, J. (1997) Redescripcion de Lestes auritus y Lestes paulistus y descripcion del ultimo estadio larval de L. undulatus (Odonata: Lestidae). Revista de la Sociedad Entomologica Argentina, 56 (1 - 4), 159 - 166.","Lencioni, F. A. A. (2005) Damselflies of Brazil - An illustrated identification guide. I. Non-Coenagrionidae families. All Print Editora, Sao Paulo, iv + 324 pp.","Costa, J. M., Souza, L. O. I. & Muzon, J. (2006) Descriptions of three new species of Odonata from Brazil. Zootaxa, 1314 (1), 53 - 68. https: // doi. org / 10.11646 / zootaxa. 1314.1.4","Garrison, R. W., von Ellenrieder, N. & Louton, J. A. (2010) Damselfly Genera of the New World: An Illustrated and Annotated Key to the Zygoptera. The Johns Hopkins University Press, Baltimore, Maryland, 490 pp.","Lencioni, F. A. A. (2017) Damselflies of Brazil - An illustrated identification guide - Southeast Region. E-book, 559 pp."]}

Lestes forficula Rambur, 1842 Fig. 06 (♂ —App), Fig. 19 (♂ —habitus), Fig. 28 (♀ —habitus), Fig. 37 (B— ♀ S8–S10), Fig. 39 (B— ♀ basal plate), Fig. 40 (F— ♀ pectoral color pattern), Fig. 43 (♂ —live photo). Etymology: forficula = Latin for small shears, scissors. Lestes forficula Rambur, 1842: 247 (description of male); Hagen 1861: 68 (description of male and distribution); Selys 1862: 308 (description of male and female, distribution, description of race L. striata); Kirby 1890: 161 (data on species description and distribution); Calvert 1909: 92 (Key); Jurzitza 1981: 117 (presence in Argentina); Davies & Tobin 1984: 32 (data on publication and distribution); De Marmels 1990: 336 (presence in Venezuela, synonymy with L. striatus Selys, 1862); Bridges 1994: (VII) 91 (data on publication, type depository, type locality and references); Belle 1997: 96, Figs.: 3, 20, 21, 25, 31 (key, data on male and female, illustration thorax in ventral view, appendages in dorsal and lateral views, female S 8–10 in lateral view, pterostigma of right forewing); Lencioni 2005: 93, Fig. 52(A–B) (data on description, data on type locality, data on type deposition, data on distribution, data on larval description, original illustration of appendages in lateral and mediodorsal view); Costa et al. 2006: 60–61, Fig. 23 (appendages dorsal view, key for adult males); Lencioni 2006: 257 (larva, illustrations from Calvert 1928); Blanke 2008: 14 (first record to Espírito Santo); Garrison et al. 2010: 117, Figs.: 501, 515, 519 and 521 (data on species, original illustration of thorax in lateral view, appendages in lateral and dorsal views, female S 8–10 in lateral view); Damaceno et al. 2014: 25 (presence in Espírito Santo, incorrectly marked as first State record); Lencioni 2017: 107–108, Fig. 42A–D, 43A–B, DL-02 (data on description, type locality, type deposition, distribution, and larval description, appendages in lateral, mediodorsal and dorsal views, female S 8–10 in lateral view, male and female habitus, live photo). Types. Syntypes in IRSNB (not examined). Synonyms. Lestes striatus Selys, 1862 (De Marmels 1990). Larva described. Yes (by supposition by Calvert 1928). Material examined. (17 ♂♂ + 6 ♀♀): 1 ♂ Brazil: São Paulo, Rio Claro, Sítio Primavera, 18.ii.1996, F.A.A. Lencioni leg.; 2 ♂ Brazil: São Paulo, Rio Claro, Sítio Primavera, 20.ii.1996, F.A.A. Lencioni leg.; 1 ♂ Brazil: São Paulo, Jacareí, Campo Grande, 25.ii.1996, F.A.A. Lencioni leg.; 3 ♂♂ Brazil: São Paulo, Jacareí, Fazenda Santana do Poço, 04.ix.1996, F. Lencioni leg.; 1 ♂ Brazil: São Paulo, Jacareí, Fazenda Santana do Poço, 15.ix.1996, F.A.A. Lencioni leg.; 1 ♂ + 1 ♀ Brazil: São Paulo, Jacareí, Fazenda Santana do Poço, 23.x.1996, (in tandem), F. Lencioni leg.; 1 ♂ Brazil: São Paulo, São José dos Campos, Univap – Campus Urbanova, 20.xi.2000, F. Lencioni leg.; 1 ♂ + 1 ♀ Brazil: São Paulo, São José dos Campos, Univap – Campus Urbanova, (in tandem), 29.xi.2000, F. Lencioni leg.; 1 ♂ + 1 ♀ Brazil: São Paulo, Jacareí, Fazenda Santana do Poço, 12.xii.2000, F. Lencioni leg.; 3 ♂♂ + 2 ♀♀ Brazil: São Paulo, Rio Claro, Sítio Primavera, 12/02/2002, F.A.A. Lencioni leg.; 2 ♂♂ + 1 ♀ Brazil: São Paulo, Rio Claro, Sítio Primavera, 22º24’ 33”S & 47º36’44”W, 25–28.ii.2006, F.A.A. Lencioni leg. Distribution. Brazil (São Paulo, Mato Grosso, Minas Gerais, Roraima), West Indies, Peru, Venezuela, Trinidad, Guyane Française and Argentina (Misiones). Diagnostic characters. ♂ —Cercus in lateral view: 4/5 basal straight with the apical 1/5 forming almost a right angle, basal spine clearly visible and the semicircular medial expansion visible. Cercus in mediodorsal view: base of cercus with a mesally–directed long spine, medial expansion semicircular with the outer border covered with spines. Paraproct in lateral view: almost the same size of the cercus. Paraproct in dorsal view: long and narrow (less narrow than L. bipupillatus) with a spoon–like tip. ♀ —Basal plate: species belonging to basal plate group 2 (Fig. 38), with dorsal side twice the length of ventral side, dorsal side with anterior 1/4 slight concave and posterior 3/4 convex. The junction of dorsal side with posterior side forming an acute process directed slightly downward. Posterior and ventral sides subequal (Fig. 39B). Pectoral color pattern as Fig. 40F., Published as part of Lencioni, F. A. A., Neiss, U. G., Dutra, S. L., Furieri, K. S., Juen, L., Batista, J. D. & Vilela, Diogo S., 2021, Synopsis of Lestes from Brazil with description of Lestes demarcoi sp. nov (Zygoptera: Lestidae), pp. 511-541 in Zootaxa 4990 (3) on pages 517-518, DOI: 10.11646/zootaxa.4990.3.4, http://zenodo.org/record/5027008, {"references":["Rambur, J. P. (1842) Histoire Naturelle des Insectes: Neuropteres. Libraire Encyclopedique de Roret, Paris, 534 pp.","Hagen, H. A. (1861) Synopsis of the Neuroptera of North America, with a list of the South American species. Smithsonian Miscellaneous Collections, Washington. Smithsonian Institution, Washington, 347 pp. https: // doi. org / 10.5962 / bhl. title. 22092","Selys Longchamps, E. de (1862) Synopsis des Agrionines Seconde legion: Lestes. Bulletin de l'Academie royale de Belgique, Series 2, 13, 288 - 338.","Kirby, W. F. (1890) A synonymic catalogue of Neuroptera Odonata, or Dragonflies With an appendix of fossil species. Gurney & Jackson, London, ix + 202 pp. https: // doi. org / 10.5962 / bhl. title. 5534","Calvert, P. P. (1909) Contributions to a knowledge of the Odonata of the Neotropical region, exclusive of Mexico and Central America. Annals of the Carnegie Museum, 6, 73 - 264.","Jurzitza, G. (1981) Lista provicional de los odonatos del Parque Nacional Iguazu, Provincia de Misiones, Republica Argentina. Notulae odonatologicae, 1 (7), 117 - 118.","Davies, D. A. L. & Tobin, P. (1984) The Dragonflies of the world: A systematic list of the extant species of Odonata Volume I Zygoptera, Anisozygoptera. Societas Internationalis Odonatologica Rapid Communication, 3 (Supplement), i - ix + 1 - 127.","De Marmels, J. (1990) An updated checklist of the Odonata of Venezuela. Odonatologica, 19 (4), 333 - 345.","Bridges, C. A. (1994) Catalogue of the family-group, genus-group and species-group names of the Odonata of the world. 3 rd Edition. C. A. Bridges, Urbana, Illinois, xlvi + 905 pp. https: // doi. org / 10.5962 / bhl. title. 15291","Belle, J. (1997) The genus Lestes (Odonata: Lestidae) Leach, 1815, in Surinam. Zoologische Mededelingen, 71, 89 - 103.","Lencioni, F. A. A. (2005) Damselflies of Brazil - An illustrated identification guide. I. Non-Coenagrionidae families. All Print Editora, Sao Paulo, iv + 324 pp.","Costa, J. M., Souza, L. O. I. & Muzon, J. (2006) Descriptions of three new species of Odonata from Brazil. Zootaxa, 1314 (1), 53 - 68. https: // doi. org / 10.11646 / zootaxa. 1314.1.4","Lencioni, F. A. A. (2006) Damselflies of Brazil - An illustrated identification guide. II. Coenagrionidae. All Print Editora. Sao Paulo, viii + 419 pp.","Calvert, P. P. (1928) Report on Odonata, including notes on some internal organs of the larvae collected by the Barbados - Antigua Expedition from the University of Iowa in 1918. University of Iowa studies in natural history, 12, 3 - 44.","Blanke, A. F. R. (2008) Four new Odonata records for the state of Espirito Santo, Brazil: Heteragrion petiense Machado, Lestes forficula Rambur, Orthemis ambinigra Calvert and Erythrodiplax clitella Borror (Zygoptera: Megapodagrionidae, Lestidae; Anisoptera: Libellulidae. Notulae odonatologicae, 7 (2), 13 - 15.","Garrison, R. W., von Ellenrieder, N. & Louton, J. A. (2010) Damselfly Genera of the New World: An Illustrated and Annotated Key to the Zygoptera. The Johns Hopkins University Press, Baltimore, Maryland, 490 pp.","Damaceno, I. V., Buys, S. A., Silva, C. C. & Martins, R. F. (2014) Levantamento de Odonata (Insecta) ao longo das margens do Rio Dois de Setembro, Municipio de Ecoporanga, noroeste do Estado do Espirito Santo. Boletim do Museu de Biologia Mello Leitao, New Series, 33, 25 - 33.","Lencioni, F. A. A. (2017) Damselflies of Brazil - An illustrated identification guide - Southeast Region. E-book, 559 pp."]}

Lestes dichrostigma Calvert, 1909 Fig. 3 (♂ —App), Fig. 17 (♂ —habitus), Fig. 27 (♀ —habitus), Fig. 37 (A— ♀ S8–S10), Fig. 39 (A— ♀ basal plate), Fig. 40 (C— ♀ pectoral color pattern), Fig. 42 (♂ —live photo). Etymology: dichrostigma = dichros, Greek (δίχρως) for two–colored + stigma, Latin for mark, in reference to the bicolored pterostigma, which occurs only in the juvenile. Lestes dichrostigma Calvert, 1909: 102, Figs. 8, 31–32 (description of male, female, illustration of male thorax in ventral view, appendages in lateral and mediodorsal views); Kennedy 1942: 283 (illustration of appendages in lateral and dorsal views); Jurzitza 1981: 117 (presence in Argentina); Davies & Tobin 1984: 31 (data on publication and distribution); Bridges 1994: (VII) 68 (data on publication, type depository, type locality and references); De Marmels 1990: 336 (presence in Venezuela); Lencioni 2005: 91, Fig. 50(A–C) (data on description, type locality, type deposition, distribution, larval description, illustration of appendages in lateral and dorsal views from Kennedy 1942, thorax in ventral view from Calvert 1909); Costa et al. 2006: 60–61, Fig. 30 (pterothorax color pattern in ventral view, key for adult males); Muzón & Muñoz 2007: 238 (larva and data on Argentinian specimens); Garrison et al. 2010: 117, Figs.: 502, 510, 511, 512 and 518 (data on species with reference to larval description, original illustration of appendages in lateral and dorsal views, penis in ectal and lateral views, latero–ventral view of male S1–2); Lencioni 2017: 105–106, Fig. 40A–D, 41A–C, DL-01 (data on description, type locality, type deposition, distribution, and larval description, appendages in lateral and mediodorsal views, female S8-S 10 in lateral view, thorax in ventral view, male and female habitus, live photo). Types. Syntypes in ANS (not examined). Larva described. Yes (Muzón & Muñoz 2007). Material examined. (5 ♂♂ + 3 ♀♀): 1 ♂ Brazil: São Paulo, Rio Claro, Sítio Primavera, 22º24’ 33” S & 47º36’ 44” W, 569 m, 20.x.1996, F.A.A. Lencioni leg.; 1 ♀ Brazil: São Paulo, Mogi das Cruzes, 1996, F.A.A. Lencioni leg.; 2 ♂♂ Trinidad: Valencia, forest just SE of town, 15.iv.1965, T. W. Donnelly leg.; 1 ♀ Brazil: São Paulo, Jacareí, Fórum da Comarca de Jacareí, 26.ix.2001, F.A.A. Lencioni leg.; 1 ♂ Brazil: São Paulo, Jacareí, Fazenda Santana do Rio Abaixo, 23º15’00”S & 46º00’15”W, 591 m, 25.x.2001, F.A.A. Lencioni leg.; 1 ♀ Brazil: São Paulo, Jacareí, Fazenda Santana do Rio Abaixo, 23º15’ 00” S & 46º00’ 15” W, 591 m, 10.xi.2001, F.A.A. Lencioni leg.; 1 ♂ Brazil: São Paulo, Jacareí, Jardim Coleginho, Rua Aníbal, 216, 03.xii.2010, found dead in a spider web. Distribution. Brazil (São Paulo, Mato Grosso (?)), Venezuela, Trinidad and Argentina. Diagnostic characters. ♂ —Cercus in lateral view: basal two thirds straight, with medial expansion clearly visible as an inverted triangle with the vertex at the level of the tip of the paraproct, tip of cercus comma–like shaped. Cercus in mediodorsal view: base of cercus without spine, medial expansion of cercus almost twice the width of the base and roughly triangular with a small bump at the apical end, without any spine. Paraproct in lateral view: almost a third of the length of the cercus. Paraproct in dorsal view: with a broad base and finger–like distal end. ♀ —Basal plate: species belonging to basal plate group 1 (Fig. 38), with dorsal side twice the length of ventral side, posterior side with ventral section shorter than the dorsal section (Fig. 39A). Pectoral color pattern as Fig. 40C., Published as part of Lencioni, F. A. A., Neiss, U. G., Dutra, S. L., Furieri, K. S., Juen, L., Batista, J. D. & Vilela, Diogo S., 2021, Synopsis of Lestes from Brazil with description of Lestes demarcoi sp. nov (Zygoptera: Lestidae), pp. 511-541 in Zootaxa 4990 (3) on page 515, DOI: 10.11646/zootaxa.4990.3.4, http://zenodo.org/record/5027008, {"references":["Calvert, P. P. (1909) Contributions to a knowledge of the Odonata of the Neotropical region, exclusive of Mexico and Central America. Annals of the Carnegie Museum, 6, 73 - 264.","Kennedy, C. H. (1942) Lestes henshawi, Ecuador, L. urubamba, Peru, and notes on other South American Lestes (Lestidae: Odonata). Revista de Entomologia, 13 (3), 273 - 290.","Jurzitza, G. (1981) Lista provicional de los odonatos del Parque Nacional Iguazu, Provincia de Misiones, Republica Argentina. Notulae odonatologicae, 1 (7), 117 - 118.","Davies, D. A. L. & Tobin, P. (1984) The Dragonflies of the world: A systematic list of the extant species of Odonata Volume I Zygoptera, Anisozygoptera. Societas Internationalis Odonatologica Rapid Communication, 3 (Supplement), i - ix + 1 - 127.","Bridges, C. A. (1994) Catalogue of the family-group, genus-group and species-group names of the Odonata of the world. 3 rd Edition. C. A. Bridges, Urbana, Illinois, xlvi + 905 pp. https: // doi. org / 10.5962 / bhl. title. 15291","De Marmels, J. (1990) An updated checklist of the Odonata of Venezuela. Odonatologica, 19 (4), 333 - 345.","Lencioni, F. A. A. (2005) Damselflies of Brazil - An illustrated identification guide. I. Non-Coenagrionidae families. All Print Editora, Sao Paulo, iv + 324 pp.","Costa, J. M., Souza, L. O. I. & Muzon, J. (2006) Descriptions of three new species of Odonata from Brazil. Zootaxa, 1314 (1), 53 - 68. https: // doi. org / 10.11646 / zootaxa. 1314.1.4","Muzon, J. & Munoz, S. W. (2007) Description of the final instar larva of Lestes dichrostigma Calvert (Zygoptera: Lestidae). Studies on Neotropical Fauna and Envinronment, 42 (3), 235 - 239. https: // doi. org / 10.1080 / 01650520601106196","Garrison, R. W., von Ellenrieder, N. & Louton, J. A. (2010) Damselfly Genera of the New World: An Illustrated and Annotated Key to the Zygoptera. The Johns Hopkins University Press, Baltimore, Maryland, 490 pp.","Lencioni, F. A. A. (2017) Damselflies of Brazil - An illustrated identification guide - Southeast Region. E-book, 559 pp."]}

Lestes undulatus Say, 1839 Fig. 13 (♂ —App), Fig. 25 (♂ —habitus), Fig. 33 (♀ —habitus), Fig. 37 (G— ♀ S8–10), Fig. 39 (G— ♀ basal plate), Fig. 40 (M— ♀ pectoral color pattern). Etymology: undulatus = Latin for wavy. Lestes undulatus Say, 1839: 35 (description of male); Selys 1862: 311 (description of male and female, distribution); Kirby 1890: 161 (data on species description and distribution); Calvert 1909: 104 (key, illustration of thorax in ventral view, appendages in lateral and dorsal views); Kennedy 1942: 283 (illustration of appendages in lateral and dorsal views); Davies & Tobin 1984: 34 (data on publication and distribution); Muzón 1997: 7 (larvae); Lencioni 2005: 101, Fig. 60(A–C) (data on description, type locality, deposition, distribution, and larval description, illustration of appendages in lateral and dorsal views from Kennedy 1942, thorax in ventral view from Calvert 1909); Costa et al. 2006: 60–61, Fig. 25 (appendages lateral view, key for adult males); Garrison et al. 2010: 117 (data on species). Types. Unknown. Larva described. Yes (Muzón 1997). Additional material examined. (2 ♂♂ + 2 ♀♀): 2 ♂♂ + 2 ♀♀ Argentina: Buenos Aires, Los Torinas, charco s/ Rt 11, 18.i.1995, J. Muzón leg. Distribution. Brazil ( Rio Grande do Sul), Uruguay, Argentina, Chile. Diagnostic characters. ♂ —Cercus in lateral view: basal 1/2 straight, slightly inclined upward, apical 1/2 comma–like with a twisted tip which is covered with pale setae; Cercus in medioventral view: basal expansion semicircular, without spines, a ridge separating the medial portion from the apical portion. Paraproct in lateral view: stout and very small (1/8 length of cercus). Paraproct in dorsal view: barely visible and slightly triangular. ♀ —Basal plate: species belonging to basal plate group 1 (Fig. 38), with dorsal side more than twice the length of ventral side. Posterior side with dorsal and ventral sections subequal. Dorsal side and dorsal section of posterior side straight, ventral section of posterior side concave (Fig. 39G). Pectoral color pattern as in Fig. 40M., Published as part of Lencioni, F. A. A., Neiss, U. G., Dutra, S. L., Furieri, K. S., Juen, L., Batista, J. D. & Vilela, Diogo S., 2021, Synopsis of Lestes from Brazil with description of Lestes demarcoi sp. nov (Zygoptera: Lestidae), pp. 511-541 in Zootaxa 4990 (3) on page 523, DOI: 10.11646/zootaxa.4990.3.4, http://zenodo.org/record/5027008, {"references":["Say, T. (1839) Descriptions of new North American Neuropterous insects, and observation on some already described. Journal of the Academy of Natural Sciences of Philadelphia, 8 (l), 9 - 46.","Selys Longchamps, E. de (1862) Synopsis des Agrionines Seconde legion: Lestes. Bulletin de l'Academie royale de Belgique, Series 2, 13, 288 - 338.","Kirby, W. F. (1890) A synonymic catalogue of Neuroptera Odonata, or Dragonflies With an appendix of fossil species. Gurney & Jackson, London, ix + 202 pp. https: // doi. org / 10.5962 / bhl. title. 5534","Calvert, P. P. (1909) Contributions to a knowledge of the Odonata of the Neotropical region, exclusive of Mexico and Central America. Annals of the Carnegie Museum, 6, 73 - 264.","Kennedy, C. H. (1942) Lestes henshawi, Ecuador, L. urubamba, Peru, and notes on other South American Lestes (Lestidae: Odonata). Revista de Entomologia, 13 (3), 273 - 290.","Davies, D. A. L. & Tobin, P. (1984) The Dragonflies of the world: A systematic list of the extant species of Odonata Volume I Zygoptera, Anisozygoptera. Societas Internationalis Odonatologica Rapid Communication, 3 (Supplement), i - ix + 1 - 127.","Muzon, J. (1997) Redescripcion de Lestes auritus y Lestes paulistus y descripcion del ultimo estadio larval de L. undulatus (Odonata: Lestidae). Revista de la Sociedad Entomologica Argentina, 56 (1 - 4), 159 - 166.","Lencioni, F. A. A. (2005) Damselflies of Brazil - An illustrated identification guide. I. Non-Coenagrionidae families. All Print Editora, Sao Paulo, iv + 324 pp.","Costa, J. M., Souza, L. O. I. & Muzon, J. (2006) Descriptions of three new species of Odonata from Brazil. Zootaxa, 1314 (1), 53 - 68. https: // doi. org / 10.11646 / zootaxa. 1314.1.4","Garrison, R. W., von Ellenrieder, N. & Louton, J. A. (2010) Damselfly Genera of the New World: An Illustrated and Annotated Key to the Zygoptera. The Johns Hopkins University Press, Baltimore, Maryland, 490 pp."]}

Lestes falcifer Sjöstedt, 1918 Fig. 04 (♂ —App), Fig. 18 (♂ —habitus), Fig. 40 (D— ♂ pectoral color pattern). Etymology: falcifer = falx , Latin for scythe + ferre, Latin meaning bear, in reference to the scythe shape of the male cercus. Lestes falcifer Sjöstedt, 1918: 2, Fig. 2 (15) (description of male, illustration of cercus in mediodorsal view); Davies & Tobin 1984: 32 (data on publication and distribution); Bridges 1994: (VII) 83 (data on publication, type depository, type locality and references); De Marmels 1990: 336 (presence in Venezuela); Lencioni 2005: 92, Fig. 51(A–C) (data on description, data on type locality, data on type deposition, data on distribution, data on larval description, original illustration of appendages in lateral and mediodorsal view, thorax in ventral view); Costa et al. 2006: 60-61, Fig. 33 (pterothorax color pattern in ventral view, key for adult males); Garrison et al. 2010: 117 (data on species). Types. Holotype in NRM (not examined), female still undescribed. Larva described. No. Synonyms. Lestes edentatus Belle, 1997. Material examined. Bolivia (1 ♂): Lestes falcifer: BOLIVIA, Cochabamba Department, Carrasco Province, forest pool W of Sajta, 11.xi.1998, K.J. Tennessen leg. (in Collection of K.J. Tennessen) . Distribution. Brazil ( Amazonas, Roraima), Bolivia, Venezuela and Peru. Diagnostic characters. ♂ — Cercus in lateral view: basal 1/4 straight, apical 3/4 almost rectangular with a semicircular notch in the middle of the bottom edge. Cercus in mediodorsal view: base of cercus without spine, medial expansion fused with the apical portion of cercus forming a roughly rectangular plate. Paraproct in lateral view: more than half the size of the cercus, with a tuff of pale hair–like setae directly upward. Paraproct in dorsal view: almost triangular with a spoon–like tip. ♀ —female undescribed, but as almost all females have pectoral color pattern much similar to that of males, the male pattern was added for comparative purposes (Fig. 40D)., Published as part of Lencioni, F. A. A., Neiss, U. G., Dutra, S. L., Furieri, K. S., Juen, L., Batista, J. D. & Vilela, Diogo S., 2021, Synopsis of Lestes from Brazil with description of Lestes demarcoi sp. nov (Zygoptera: Lestidae), pp. 511-541 in Zootaxa 4990 (3) on page 516, DOI: 10.11646/zootaxa.4990.3.4, http://zenodo.org/record/5027008, {"references":["Sjostedt, Y. (1918) Wissenschaftliche Ergebnisse der Schwedischen entomologischen Reise des Herrn Dr. A. Roman in Amazonas 1914 - 1915. 1, Odonata. Arkiv for zoologi, 11 (15), 1 - 54.","Davies, D. A. L. & Tobin, P. (1984) The Dragonflies of the world: A systematic list of the extant species of Odonata Volume I Zygoptera, Anisozygoptera. Societas Internationalis Odonatologica Rapid Communication, 3 (Supplement), i - ix + 1 - 127.","Bridges, C. A. (1994) Catalogue of the family-group, genus-group and species-group names of the Odonata of the world. 3 rd Edition. C. A. Bridges, Urbana, Illinois, xlvi + 905 pp. https: // doi. org / 10.5962 / bhl. title. 15291","De Marmels, J. (1990) An updated checklist of the Odonata of Venezuela. Odonatologica, 19 (4), 333 - 345.","Lencioni, F. A. A. (2005) Damselflies of Brazil - An illustrated identification guide. I. Non-Coenagrionidae families. All Print Editora, Sao Paulo, iv + 324 pp.","Costa, J. M., Souza, L. O. I. & Muzon, J. (2006) Descriptions of three new species of Odonata from Brazil. Zootaxa, 1314 (1), 53 - 68. https: // doi. org / 10.11646 / zootaxa. 1314.1.4","Garrison, R. W., von Ellenrieder, N. & Louton, J. A. (2010) Damselfly Genera of the New World: An Illustrated and Annotated Key to the Zygoptera. The Johns Hopkins University Press, Baltimore, Maryland, 490 pp.","Belle, J. (1997) The genus Lestes (Odonata: Lestidae) Leach, 1815, in Surinam. Zoologische Mededelingen, 71, 89 - 103."]}

Lestes fernandoi Costa, Souza & Muzón, 2006 Fig. 05 (♂ —App), Fig. 40 (E— ♂ pectoral color pattern). Etymology: fernandoi , named after Luiz Fernando Netto dos Reys, collector of the type series. Lestes fernandoi Costa, Souza & Muzón, 2006: 58, Figs.: 13–20, 36 (key to the Brazilian species, description of male and female, original illustration of color pattern of male thorax in lateral and ventral views, penis in ectal and lateral views, appendages in lateral, dorsal and ventral views, female S 8–10 in lateral views); Garrison et al. 2010: 117 (data on species). Types. Holotype & Allotype in MNRJ (not examined—destroyed by fire in 2.ix.2018). Larva described. No. Distribution. Brazil (Maranhão). Diagnostic characters. ♂ —Cercus in lateral view: straight and with almost uniform width, the medial expansion visible in lateral view in the middle of the length of cercus. Cercus in mediodorsal view: base of cercus without spine, medial expansion with small spines at the apical end. Paraproct in lateral view: less than half the size of the cercus, stout and with a tuff of setae directed upwards. ♀ —Basal plate not illustrated in Costa et al. 2006, pectoral color pattern as in Fig. 40E., Published as part of Lencioni, F. A. A., Neiss, U. G., Dutra, S. L., Furieri, K. S., Juen, L., Batista, J. D. & Vilela, Diogo S., 2021, Synopsis of Lestes from Brazil with description of Lestes demarcoi sp. nov (Zygoptera: Lestidae), pp. 511-541 in Zootaxa 4990 (3) on pages 516-517, DOI: 10.11646/zootaxa.4990.3.4, http://zenodo.org/record/5027008, {"references":["Costa, J. M., Souza, L. O. I. & Muzon, J. (2006) Descriptions of three new species of Odonata from Brazil. Zootaxa, 1314 (1), 53 - 68. https: // doi. org / 10.11646 / zootaxa. 1314.1.4","Garrison, R. W., von Ellenrieder, N. & Louton, J. A. (2010) Damselfly Genera of the New World: An Illustrated and Annotated Key to the Zygoptera. The Johns Hopkins University Press, Baltimore, Maryland, 490 pp."]}

AIM: Here we assess the effects of habitat degradation on individuals of the two suborders of Odonata community of Borecaia river sub-basin. More specifically, we tested the hypothesis that Anisoptera richness would be positively affected by removal of vegetation; on the other hand, Zygoptera richness would be adversely affected by virtue of their ecophysiological requirements; METHODS: We selected 10 streams of similar orders, six preserved and four degraded. Streams characterized as preserved had values of Index of Habitat Integrity (HII) above 0.70 (0.77 ± 0.07, mean ± SD) and continuous forest on both sides with a minimum width of 70 meters. Each site was sampled three times on different days. The effect of vegetation removal on richness was assessed using richness estimated by first order Jackknife; RESULTS: Decreased physical integrity (measured with IIH) of streams had no significant effect on the estimated richness to Odonata in general. However, the estimated richness of Anisoptera showed an inverse relationship with the integrity (r² = 0.485, P = 0.025), i.e., there was a reduction in their species richness with increasing integrity; DISCUSSION: As a general pattern, Anisoptera presents higher richness in an altered site; on the other hand, Zygoptera presents higher richness in a preserved one. This pattern suggests that Odonata needs to be considered at the sub-order level to access the effects of habitat degradation on these insects. Because of its restrictions ecophysiological Odonata varied widely in their composition and species richness between the two types of environments, it reinforces the potential of the order of studies and environmental monitoring also shows that Zygoptera be more affected by changes in habitat. However, further studies including more samples and different streams are need to confirm this pattern, being an interesting line of research for future works.OBJETIVOS: Com o intuito de avaliar os efeitos de mudanças na integridade ambiental sobre os indivíduos da comunidade de Odonata da sub-bacia do rio Borecaia, testamos a hipótese de que a riqueza de Anisoptera seria afetada positivamente pela remoção da vegetação; por outro lado, a riqueza Zygoptera seria prejudicada em virtude de suas necessidades ecofisiológicas; MÉTODOS: Selecionamos 10 riachos de ordens similares, seis classificados como preservados e quatro como alterados. Riachos classificados como preservados apresentaram valores do Índice valores de Integridade Habitat (HII) acima de 0.70 e mata continua nas duas margens com uma largura mínima de 70 metros. Cada ponto foi amostrado três vezes em dias diferentes. O efeito de remoção de vegetação sobre a riqueza foi avaliada utilizando Jackknife de primeira ordem; RESULTADOS: A diminuição da integridade física (mensurada com o IIH) dos córregos não exerceu efeito significativo sobre a riqueza estimada para a Ordem Odonata. Porém, a riqueza estimada de Anisoptera apresentou uma relação inversa com a integridade (r² = 0.485; p = 0.025), mostrando que com o aumento da integridade houve uma redução na sua riqueza de espécies; DISCUSSÃO: Como um padrão geral, Anisoptera apresenta maiores valores de riqueza em locais alterados; por outro lado, Zygoptera apresenta maiores valores em preservados. Devido suas restrições ecofisiologicas Odonata apresentou uma grande variação na sua composição e riqueza de espécie entre os dois tipos de ambientes, isso reforça o potencial da ordem em estudos de monitoramento ambiental e também mostra que Zygoptera será mais afetada pelas transformações de habitat. No entanto, futuros estudos incluindo mais amostras e diferentes córregos são necessários para confirmar este padrão sendo uma linha de pesquisa interessante para trabalhos futuros.