Gerromorpha (Insecta, Hemiptera, Heteroptera) from eastern Maranhão state, northeastern Brazil Author Lima Franco, Cleilton Author Mourão dos Santos Rodrigues, Juliana Author Silva de Azevêdo, Carlos Augusto Author Moreira, Felipe Ferraz Figueiredo text Check List 2021 2021-03-17 17 2 551 568 http://dx.doi.org/10.15560/17.2.551 journal article 10.15560/17.2.551 1809-127X Stridulivelia tersa (Drake & Harris, 1941) Figure 13A–F New records. BRAZIL • 1 ♂ ; Maranhão , Caxias , Areia Branca stream; −05.03720 , −043.48580 ; 13 Aug. 2019 ; C.L. Franco et al. leg.; LEAq 00242 • 2 ♂ ; Maranhão , Codó , Baixa Grande II stream; −04.73222 , −043.70638 , 05 Oct. 2019 ; C.L. Franco et al. leg.; LEAq 00198 • 1 ♂ , 2 ♀ ; Maranhão , Caxias , Barragem stream; −04.87562 , −043.09894 ; 10 Dec. 2019 ; C.L. Franco et al. leg.; LEAq 00239 • 1 ♂ , 1 ♀ ; Maranhão , Caxias , Jatobá stream; −04.90972 , −043.11666 ; 28 Aug. 2019 ; C.L. Franco et al. leg.; LEAq 00125 . Identification. Like S . ayacucho , our specimens of S . tersa have 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.