Stridulivelia tersa (Drake & Harris, 1941)

Lima Franco, Cleilton, Mourão dos Santos Rodrigues, Juliana, Silva de Azevêdo, Carlos Augusto & Moreira, Felipe Ferraz Figueiredo, 2021, Gerromorpha (Insecta, Hemiptera, Heteroptera) from eastern Maranhão state, northeastern Brazil, Check List 17 (2), pp. 551-568 : 566-567

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.