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 ayacucho Polhemus & Spangler, 1995 Figure 12E–J New records. BRAZIL3 ♂ ; Maranhão , Codó , Baixa Grande II stream; −04.73222 , −043.70638 , 05 Oct. 2019 ; C.L. Franco et al. leg.; LEAq 00197 1 ♀ ; Maranhão , Caxias , Barragem stream; −04.87562 , −043.09894 ; 10 Dec. 2019 ; C.L. Franco et al. leg.; LEAq 00284 1 ♀ ; Ma- ranhão, Caxias , Jatobá stream; −04.90972 , −043.11666 ; 28 Aug. 2019 ; C.L. Franco et al. leg.; LEAq 00135 . Identification. The specimens above differ from S . astralis by the stridulatory structure on the lateral margin of the laterotergites formed by a row of widely separated knob-like denticles ( Fig. 12G, J ). The male has the venter of abdominal segment VIII centrally expanded but not forming a lobule, and the female has short posterior projections on the dorsum of abdominal segment VIII, with about one-third the length of the segment at the midline ( Floriano et al. 2017 ). Distribution in Brazil . PA, MA*, MT, MG, SP.