Gerromorpha (Insecta, Hemiptera, Heteroptera) from eastern Maranhão state, northeastern Brazil Lima Franco, Cleilton Mourão dos Santos Rodrigues, Juliana Silva de Azevêdo, Carlos Augusto Moreira, Felipe Ferraz Figueiredo Check List 2021 2021-03-17 17 2 551 568 7WXRH (Drake & Harris, 1941) Drake & Harris 1941 [810,1284,1556,1580] Insecta Veliidae Stridulivelia Animalia Hemiptera 15 566 Arthropoda species tersa   Figure 13A–F  New records.  BRAZIL• 1 ♂; Maranhão, Caxias, Areia Brancastream; −05.03720, −043.48580;  13 Aug. 2019; C.L. Francoet al. leg.; LEAq 00242•  2 ♂; Maranhão, Codó, Baixa GrandeII stream; −04.73222, −043.70638,  05 Oct. 2019; C.L. Francoet al. leg.; LEAq 00198•  1 ♂, 2 ♀; Maranhão, Caxias, Barragemstream; −04.87562, −043.09894;  10 Dec. 2019; C.L. Francoet al. leg.; LEAq 00239•  1 ♂, 1 ♀; Maranhão, Caxias, Jatobástream; −04.90972, −043.11666;  28 Aug. 2019; C.L. Francoet al. leg.; LEAq 00125.    Identification.Like  S. ayacucho, our specimens of   S. tersahave the stridulatory structure on the lateral margin of the abdominal laterotergites formed by a row of widely separated knob-like denticles ( Fig. 13C, F). However, they have the first four or five visible abdom- inal segments with transverse lateral sulci (two in  S. ayacucho), and the female lacks projections on abdominal tergite VIII (present in  S. ayacucho) ( Floriano et al. 2017).   Distribution in Brazil.AM, PA, MA*, MT, MG, ES. 2019-08-13 C. L. Franco Brazil -5.0372 Areia Branca 1 -43.4858 Caxias 15 566 1 1 Maranhao 2019-10-05 C. L. Franco Brazil -4.73222 Baixa Grande 1 -43.70638 Codo 15 566 2 2 Maranhao 2019-12-10 C. L. Franco Brazil -4.87562 Barragem 1 -43.09894 Caxias 15 566 3 2 1 Maranhao 2019-08-28 C. L. Franco Brazil -4.90972 Jatoba 1 -43.11666 Caxias 15 566 2 1 1 Maranhao