Two new species of Belostoma Latreille, 1807 (Hemiptera: Heteroptera: Belostomatidae) of plebejum group sensu Nieser, 1975

Species of plebejum group comprises seven extant small species of giant water bugs. This group is currently reported from Honduras to southern South America. Two new species are described as a result from a revisional study of this group: Belostoma estevezae Ribeiro & Alecrim, sp. nov., from Mato Grosso State, Brazil, and B. nessimiani Ribeiro & Alecrim, sp. nov., from Amazonas State, Brazil. The prosternal keel of B. estevezae, sp. nov., is similar to that of B. nicaeum Estévez & Polhemus, 2007, while the male genitalia structures of B. nessimiani, sp. nov., is similar to those of B. parvum Estévez & Polhemus, 2007. A key to the species of plebejum group with new species included is also provided.Representantes do grupo plebejum são encontrados de Honduras até o sul da América do Sul e compreendem sete espécies de pequeno porte. Como resultado de um estudo de revisão do grupo, são descritas duas espécies novasBelostoma estevezae Ribeiro & Alecrim, sp. nov., do Estado do Mato Grosso, Brasil, similar a B. nicaeum Estévez & Polhemus, 2007, em termos de carena prosternal, e B. nessimiani Ribeiro & Alecrim, sp. nov., do Estado do Amazonas, Brasil, sendo bastante similar a B. parvum Estévez & Polhemus, 2007, em termos de genitália masculina. Uma chave de identificação para as espécies do grupo plebejum com as espécies novas incluídas é fornecida

Limnocoris decarloi Nieser & Lopez-Ruf 2001

Limnocoris decarloi Nieser & López-Ruf, 2001 Geographical distribution: Brazil. Distribution in Brazil: South Region (PR, SC, RS) (Nieser & López-Ruf 2001).Published as part of Moreira, Felipe Ferraz Figueiredo, Barbosa, Julianna Freires, Ribeiro, José Ricardo Inacio & Alecrim, Viviani Pereira, 2011, Checklist and distribution of semiaquatic and aquatic Heteroptera (Gerromorpha and Nepomorpha) occurring in Brazil 2958, pp. 1-74 in Zootaxa 2958 (1) on page 45, DOI: 10.11646/zootaxa.2958.1.1, http://zenodo.org/record/528185

Ranatra curtafemorata Kuitert 1949

Ranatra curtafemorata Kuitert, 1949 Geographical distribution: Brazil. Distribution in Brazil: North Region (AM) (Kuitert, 1949).Published as part of Moreira, Felipe Ferraz Figueiredo, Barbosa, Julianna Freires, Ribeiro, José Ricardo Inacio & Alecrim, Viviani Pereira, 2011, Checklist and distribution of semiaquatic and aquatic Heteroptera (Gerromorpha and Nepomorpha) occurring in Brazil 2958, pp. 1-74 in Zootaxa 2958 (1) on page 50, DOI: 10.11646/zootaxa.2958.1.1, http://zenodo.org/record/528185

Belostoma sayagoi De Carlo 1966

Belostoma sayagoi De Carlo, 1966 Geographical distribution: Brazil. Distribution in Brazil: North Region (PA) (De Carlo 1966a).Published as part of Moreira, Felipe Ferraz Figueiredo, Barbosa, Julianna Freires, Ribeiro, José Ricardo Inacio & Alecrim, Viviani Pereira, 2011, Checklist and distribution of semiaquatic and aquatic Heteroptera (Gerromorpha and Nepomorpha) occurring in Brazil 2958, pp. 1-74 in Zootaxa 2958 (1) on page 31, DOI: 10.11646/zootaxa.2958.1.1, http://zenodo.org/record/528185

Hydrometra metator White 1879

Hydrometra metator White, 1879 Geographical distribution: Brazil. Distribution in Brazil: North Region (AM) (White 1879a).Published as part of Moreira, Felipe Ferraz Figueiredo, Barbosa, Julianna Freires, Ribeiro, José Ricardo Inacio & Alecrim, Viviani Pereira, 2011, Checklist and distribution of semiaquatic and aquatic Heteroptera (Gerromorpha and Nepomorpha) occurring in Brazil 2958, pp. 1-74 in Zootaxa 2958 (1) on page 15, DOI: 10.11646/zootaxa.2958.1.1, http://zenodo.org/record/528185

Nerthra borealis

Nerthra borealis (Melin, 1929) Comments: According to Nieser (1975), this is known only from the male type from “ Brazil ”; the records from Suriname in fact correspond to N. terrestris (Kevan, 1948). Schnack and Estévez (1979) recorded the species from the South Region (SC).Published as part of Moreira, Felipe Ferraz Figueiredo, Barbosa, Julianna Freires, Ribeiro, José Ricardo Inacio & Alecrim, Viviani Pereira, 2011, Checklist and distribution of semiaquatic and aquatic Heteroptera (Gerromorpha and Nepomorpha) occurring in Brazil 2958, pp. 1-74 in Zootaxa 2958 (1) on page 40, DOI: 10.11646/zootaxa.2958.1.1, http://zenodo.org/record/528185

Nerthra unicornis

Nerthra unicornis (Melin, 1929) Geographical distribution: Suriname, French Guiana, Brazil, Paraguay, and Argentina. Distribution in Brazil: North, Northeast, Southeast, and South regions (PA, BA, MG, RS) (Melin 1929; Todd 1955, 1959; Nieser 1977b).Published as part of Moreira, Felipe Ferraz Figueiredo, Barbosa, Julianna Freires, Ribeiro, José Ricardo Inacio & Alecrim, Viviani Pereira, 2011, Checklist and distribution of semiaquatic and aquatic Heteroptera (Gerromorpha and Nepomorpha) occurring in Brazil 2958, pp. 1-74 in Zootaxa 2958 (1) on page 41, DOI: 10.11646/zootaxa.2958.1.1, http://zenodo.org/record/528185

Rhagovelia ochroischion Nieser & Polhemus 1997

Rhagovelia ochroischion Nieser & Polhemus, 1997 Geographical distribution: Brazil. Distribution in Brazil: Southeast Region (MG) (Nieser & Melo 1997; Nieser & Polhemus 1999).Published as part of Moreira, Felipe Ferraz Figueiredo, Barbosa, Julianna Freires, Ribeiro, José Ricardo Inacio & Alecrim, Viviani Pereira, 2011, Checklist and distribution of semiaquatic and aquatic Heteroptera (Gerromorpha and Nepomorpha) occurring in Brazil 2958, pp. 1-74 in Zootaxa 2958 (1) on page 25, DOI: 10.11646/zootaxa.2958.1.1, http://zenodo.org/record/528185

Paravelia bullialata Polhemus & Polhemus 1984

Paravelia bullialata Polhemus & Polhemus, 1984 Geographical distribution: Guyana, Suriname and Brazil. Distribution in Brazil: North Region (AM) (Polhemus & Polhemus 1984b; Pereira & Melo 2007).Published as part of Moreira, Felipe Ferraz Figueiredo, Barbosa, Julianna Freires, Ribeiro, José Ricardo Inacio & Alecrim, Viviani Pereira, 2011, Checklist and distribution of semiaquatic and aquatic Heteroptera (Gerromorpha and Nepomorpha) occurring in Brazil 2958, pp. 1-74 in Zootaxa 2958 (1) on page 20, DOI: 10.11646/zootaxa.2958.1.1, http://zenodo.org/record/528185