A synopsis of the species of Mesovelia (Insecta: Heteroptera: Mesoveliidae) occurring in the floodplain of the Amazon River, Brazil, with redescriptions of Mesovelia mulsanti White and M. zeteki Harris & Drake

Abstract

Mesovelia mulsanti White, 1879 and M. zeteki Harris & Drake, 1941 are newly recorded in the amazon river floodplain, brazil. a key to the three known species ocurring in this region is also provided. Mesovelia mulsanti can be distinguished from M. amoena and M. zeteki by the body length larger than 2.50 mm, the head without longitudinal brown stripes near midline, and the forefemur and midfemur of the male, which have ventral rows of spines. Mesovelia amoena differs from M. zeteki in aspects of body color and in number of spinules near posterior margin of abdominal sternite Vi of male.Keywords: aquatic insects, Gerromorpha, Neotropics, amazonia. Mesovelia mulsanti White, 1879 e M. zeteki Harris & Drake, 1941 são registradas pela primeira vez na várzea do rio amazonas. Uma chave de identificação para essas espécies é fornecida. os espécimes de M. mulsanti podem ser diferenciados dos das demais espécies pelo tamanho do corpo maior que 2,50 mm, pela ausência de faixas marrons longitudinais próximas à porção mediana da cabeça e pela presença de uma fileira ventral de espinhos nos fêmures anteriores e medianos dos machos. Mesovelia amoena diferencia-se de M. zeteki em termos de coloração do corpo e do número de espinhos próximos à margem posterior do sexto esternito abdominal dos machos. Sinopse das espécies dePAlAvrAs-chAve: Gerromorpha, insetos aquáticos, região Neotropical, amazônia.

Molecular phylogeny of the pond treaders (Insecta: Hemiptera: Heteroptera: Mesoveliidae), discussion of the fossil record and a checklist of species assigned to the family

“…Some species of Mesovelia are usually wing-dimorphic and contain both macropterous and apterous specimens, and macropterous specimens of M. horvathi , M. vittigera Horváth, 1915and M. zeteki Harris & Drake, 1941 are regularly found in light traps Moreira et al 2008). While Madeoveliinae have reduced ocelli, thereby resembling the state found in Gerridae and in derived members of Veliidae and Hydrometridae, macropterous specimens of Mesovelia have retained their ocelli, and resemble the plesiomorphic state seen in Hebridae, Macroveliidae and more generalized members of the Hydrometridae (Heterocleptinae) and Veliidae (Ocelloveliinae) .…”

New records of Gerromorpha (Insecta, Hemiptera, Heteroptera) from Piauí state, northeastern Brazil

“…Mesovelia mulsanti is the most widely distributed species of the genus in the Americas, and was also introduced to the Hawaiian Islands (Damgaard et al 2012). It has a few previous reports from northeastern Brazil (Neering 1954;Moreira et al 2008;Moreira and Campos 2012), but none from Piauí state or from the Parnaíba hydrographic region. The published record closest to ours is from around 360 km to the northeast in Ceará state (Moreira and Campos 2012).…”

“…3D). Females from the same localities were associated with the males based on the size, color and presence of black spinules on the middle femur (Spangler 1990;Moreira et al 2008). Identification.…”

Coexistence of bisexual and unisexual populations of Nysius groenlandicus in the Zackenberg Valley, Northeast Greenland

“…In Chlamydatus pullus (Reuter), the thelytokous form is restricted to Greenland, whereas the sexual form has a global distribution extending from subarctic to subtropical areas (Böcher, 1971). Finally, Mesovelia amoena Uhler is probably parthenogenetic in tropical South America where only females are known (Moreira et al., 2008).…”