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 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 ).