A new species of Dimeragrion Calvert, 1913 (Odonata: Zygoptera: Heteragrionidae) from Northwestern Brazil Author Mendoza-Penagos, Cristian Camilo Programa de Pós-graduação em Zoologia - PPGZOOL, Universidade Federal do Pará, Belém, Brazil. & Laboratorio de Ecologia e Conservação - LABECO, Universidade Federal do Pará, Instituto de Ciências Biológicas, Rua Augusto Correia, No. 1 Bairro Guamá, CEP 66.075 - 110 Belém, Pará, Brazil. Author Kenzy, Myckey Author Gonçalves, Silva Programa de Pós-graduação em Zoologia - PPGZOOL, Universidade Federal do Pará, Belém, Brazil. & Laboratorio de Ecologia e Conservação - LABECO, Universidade Federal do Pará, Instituto de Ciências Biológicas, Rua Augusto Correia, No. 1 Bairro Guamá, CEP 66.075 - 110 Belém, Pará, Brazil. Author Vilela, Diogo Silva Laboratório de Biologia Aquática, Departamento de Ciências Biológicas, Faculdade de Ciências e Letras de Assis, Universidade Estadual Paulista, Assis, São Paulo, Brazil. text Zootaxa 2023 2023-07-20 5318 3 411 420 http://dx.doi.org/10.11646/zootaxa.5318.3.6 journal article 10.11646/zootaxa.5318.3.6 1175-5326 8166990 07C26125-AE3D-457F-ADE2-1385CB73D138 Dimeragrion baniwa sp. nov. ( Figs. 1 a−g, 2a−c, 3a−c, 4a−c) Examined material ( 13♁♁ & 3♀♀ ) Holotype . ♁ ( LABECO , N° 12276) , BRAZIL , Amazonas, S „o Gabriel da Cachoeira , ( 0.017 , -66.891 , 81 m a.s.l. ), first-order stream inside Terra Firme Forest , in lateral swamps: 29.xi.2021 , C.C. Mendoza-Penagos & M. Gonçalves , leg., deposited in INPA . Allotype . ♀ ( LABECO , N° 12278) , same data as holotype but: ( -0.172 -66.998 , 78 m a.s.l. ), 14.xii.2021 . Paratypes . 1♁ ( LABECO , N° 12270) , same data as holotype, deposited in INPA ; 2♁♁ ( LABECO , N° 12264, 12269) same data as previously but: ( 0.069 -66.829 , 88 m a.s.l. ), 28.xi.2021 , deposited in INPA ; 1♁ ( LABECO , N° 12277), same data as previously but: ( 0.156 -66.799 , 87 m a.s.l. ), 29.xi.2021 , deposited in INPA ; 7♁♁ ( LABECO , N° 12265-12268, 12271, 12272, 12274), 1♀ ( LABECO , N° 12279) same data as previously but: ( -0.164 -67.007 , 84 m a.s.l. ), 03.xii.2021 , deposited in MPEG ; 2♁♁ ( LABECO , N° 12273, 12275), 1♀ ( LABECO , N° 122263) same data as previously but: ( -0.172 -66.998 , 78 m a.s.l. ), 28.xi.2021 , M. Gonçalves leg., deposited in LABECO . Etymology. Named baniwa (noun in apposition) in honor to the indigenous people of the Baniwa tribe which lives in and protects the Amazon Forest, and its ancestral traditions.