Tachygerris adamsoni (Drake, 1942)

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 : 558

Tachygerris adamsoni (Drake, 1942)

Figure 7A–C

New records. BRAZIL • 1 ♂, 2 ♀; Maranhão, Caxias, Barragem stream; −04.87562, −043.09894; 10 Dec. 2019; C.L. Franco et al. leg.; LEAq 00245, 00256 .

Identification. Our male specimen was identified based on the venter of the fore femur without a basal tubercle ( Fig. 7B), but instead with a fringe of setae on this area. The females have the posterior margin of abdominal sternum VII without projections, distinctly shorter than the posterior projection of the last abdominal laterotergite ( Nieser 1970; Morales-Castaño and Molano- Rendón 2009).

Distribution in Brazil. AM, PA, MA*, PI, MT, MG, RJ.

Subfamily Rhagadotarsinae

Rheumatobates Bergroth, 1892

Rheumatobates bonariensis (Berg, 1898)

New records. BRAZIL • 38 ♂, 22 ♀; Maranhão, Codó, Saco river ; −04.62482, −043.90249; 02 Oct. 2019; C.L. Franco et al. leg.; LEAq 00277 .

Identification. Our material was identified based on the males, which bear antennomere I not incrassate, longer than the others; fore femur without anterior tuft of stout setae or ventral row of long stout spines; hind femur straight; and venter of abdominal segments VII– VIII deeply longitudinally grooved ( Hungerford 1954).

Distribution in Brazil. MA*, MT, SP, SC, RS.

Subfamily Trepobatinae

Tribe Trepobatini

Halobatopsis Bianchi, 1896