Rhagovelia robusta Gould, 1931

Magalhães, Oséias Martins, Nery, Leticia, Moller, Hermann, Pavarini, Ronaldo, Bertini, Giovana & Moreira, Felipe Ferraz Figueiredo, 2020, Semiaquatic bugs (Insecta, Heteroptera, Gerromorpha) from Vale do Ribeira, São Paulo state, Brazil, Check List 16 (2), pp. 349-359 : 353-354

Rhagovelia robusta Gould, 1931

Figures 8, 9

New records. BRAZIL • 1 ♀; SãoPaulo, ValedoRibeira, Sete Barras , station 1; 24°17′31″S, 048°06′29″W; 7 Mar. 2013; G. Bertini et al. leg.; CEIOC 74811 • 1 ♀; São Paulo, Vale do Ribeira, Sete Barras , station 4; 24°18′11″S, 048°06′09″W; 7 Jan. 2013; G. Bertini et al. leg.; CEIOC 81510 • 1 ♀; São Paulo, Vale do Ribeira, Sete Barras , station 4; 24°18′11″S, 048°06′09″W; 7 Feb. 2013; G. Ber- tini et al. leg.; CEIOC 74836 • 1 ♀; São Paulo, Vale do

Ribeira, Sete Barras , station 4; 24°18′11″S, 048°06′09″W; 7 Mar. 2013; G. Bertini et al. leg.; CEIOC 74835 • 2 ♂♂; São Paulo, Vale do Ribeira, Sete Barras , station 4; 24°18′11″S, 048°06′09″W; 8 Feb. 2013; G. Bertini et al. leg.; CEIOC 74841 .

Identification. Like R. plaumanni , R. robusta belongs to the robusta group of species ( Polhemus 1997; Moreira et al. 2012). Their males can be readily distinguished by the presence of a large preapical spine on the hind tibia of the latter, which is absent on the former. Additionally, the males of R. robusta were identified based on the pronotum mostly blackish, strongly contrasting with a yellowish brown mark on anterior lobe, jugum and proepisternum with minute black denticles, hind trochanter with spines, hind femur with three irregular rows of spines, with a large spine near its middle dorsally displaced from the others, and sides of abdominal segment VII without patches of black denticles ( Magalhães et al. 2016). The females above were identified by association with the males available from the study area and comparison with other females of R. robusta from São Paulo state deposited in the CEIOC.

Known distribution. Argentina, Brazil, Paraguay ( Magalhães et al 2016).

Distribution in Brazil. Espírito Santo ( Moreira et al. 2010), Goiás ( Polhemus 1997), Mato Grosso ( Dias-Silva et al. 2013; Giehl et al. 2018), Minas Gerais ( Polhemus 1997; Nieser and Melo 1997; Souza et al. 2006; Taylor and Ferreira 2012; Moreira and Barbosa 2012), Pará ( Moreira and Campos 2012), Rio de Janeiro ( Moreira and Ribeiro 2009), Santa Catarina ( Polhemus 1997), São Paulo (Moreira and Barbosa 2011; Castanhole et al. 2013; this work), Sergipe ( Moreira and Campos 2012).