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 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 .