Synopsis of Lestes from Brazil with description of Lestes demarcoi sp. nov (Zygoptera: Lestidae) Author Lencioni, F. A. A. Private researcher, Rua Anibal, 216, d. Coleginho, Vila Zezé, Jacareí, CEP (ZIP) 12310 - 780, ão Paulo, Brazil. Author Neiss, U. G. Instituto de Criminalística, Departamento de Polícia Técnico-Científica, Manaus, Amazonas, Brazil. Author Dutra, S. L. Universidade Federal do Norte do Tocantins, Laboratório de Coleções Biológicas e Paleontológicas, Biologia, Avenida Paraguai (esq. Uxiramas), Bairro Cimba, Araguaína, Tocantins, CEP 77824 -- 838, Brazil. Author Furieri, K. S. Laboratório de Ensino de Zoologia, Departamento de Ciências Agrárias e Biológicas, CEUNES, UFES, BR 101 Norte, Km 60, Bairro Litorâneo, São Mateus, CEP 29932 - 540, Espírito Santo, Brazil. Author Juen, L. Ecology and Conservation Laboratory, Instituto de Ciências Biológicas, Universidade Federal do Pará, Rua Augusto Correia, No 1 Bairro Guamá, Belém, Pará- - CEP 66.075 - 110, Brazil. Author Batista, J. D. 0000-0002-3734-6844 Entomology Laboratory of Nova Xavantina, Universidade do Estado de Mato Grosso, Nova Xavantina, Brazil. joanadarcb @ yahoo. com. br; https: // orcid. org / 0000 - 0002 - 3734 - 6844 joanadarcb@yahoo.com.br Author Vilela, Diogo S. Private researcher. Rua Jaime Bilharinho, 575, Uberaba, Minas Gerais, Brazil. text Zootaxa 2021 2021-06-22 4990 3 511 541 journal article 5561 10.11646/zootaxa.4990.3.4 e86f591b-7b3e-4002-a5e1-ddc97b53e744 1175-5326 5027008 0719C7D3-E84F-44B2-BD67-3BB61DFD7B6B 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 .