Leptophlebiidae Banks, 1900 (Insecta, Ephemeroptera) from Maranhão state, Brazil Author Nascimento, Stênio Raniery de Sousa Author Lima, Lucas Ramos Costa Author de Azevêdo, Carlos Augusto Silva text Check List 2020 2020-05-19 16 3 579 591 http://dx.doi.org/10.15560/16.3.579 journal article 10.15560/16.3.579 1809-127X Thraulodes marreroi Chacón, Segnini & Domínguez, 1999 Figures 24 , 43 Thraulodes marreroi Chacón et al. 1999: 255 ; Gama-Neto et al. 2018: 38 ; Kluge 2020: 61 . Diagnosis. Male imago. 1) forewings without crossveins basal to bulla; 2) main longitudinal veins yellowish; 3) abdominal color pattern with central area of terga II– IV tinged with reddish ( Fig. 24 ); 4) femora I with apical ⅕ covered with a tricolored spot; 5) penis long and stout, spine long and narrow; apicolateral area forming a pronunciated “ear”; external margin forming a small lateral pouch; recurved fold slightly angulated ( Fig. 43 ). Adapted from Chacón et al. (1999) . Geographical distribution. Brazil : Maranhão * and Roraima . Panama and Venezuela . Material examined. BRAZIL • 12 imagos ; Maranhão state , Codó municipality, Rio Saco , BR316 ; 04°37′ 29.4″S , 043°54′09.1″W ; 63 m a.s.l. ; 22 Oct. 2019 ; S. R .S . Nascimento, L. R .C. Lima and J.I.S. Jesus leg; light trap; CZMA , LEAq.