title: Description of two new species of Martarega White, 1879 (Heteroptera: Nepomorpha: Notonectidae), one based on the mixed type-series of M. oriximinaensis Barbosa, Ribeiro & Ferreira-Keppler, 2010.
abstract: Description of two new species of Martarega White, 1879 (Heteroptera: Nepomorpha: Notonectidae), one based on the mixed type-series of M. oriximinaensis Barbosa, Ribeiro & Ferreira-Keppler, 2010. Martarega currently includes 20 species restricted to the Americas. A mixed type-series of M. oriximinaensis from Brazil was detected, including males with an additional group of ensiform bristles on the fore trochanter and mesofemur conspicuously setose. These specimens were described as a new species, M. siolii Barbosa, Nessimian & Takiya, sp. nov., and a redescription of M. oriximinaensis is also given. A second new species from Colombia is described, M. guajira Barbosa, Nessimian & Takiya, sp. nov. This species is very similar to M. pacifica, except for having groups of ensiform setae on the fore- and mesotrochanter, and an additional opaque area on the hemelytra.
authors.affiliation: Laboratório de Entomologia, Departamento de Zoologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro-RJ, Brazil Programa de Pós-graduação em Zoologia, UFRJ; Email: julianna.freires@gmail.com.
authors.forename: Julianna Freires
authors.initials: JF
authors.lastname: Barbosa
authors.affiliation: Laboratório de Entomologia, Departamento de Zoologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro-RJ, Brazil; Email: unknown.
authors.forename: Jorge Luiz
authors.initials: JL
authors.lastname: Nessimian
authors.affiliation: Laboratório de Entomologia, Departamento de Zoologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro-RJ, Brazil; Email: unknown.
authors.forename: Daniela Maeda
authors.initials: DM
authors.lastname: Takiya
mesh_terms: D000818:Animals; D005260:Female; D020062:Heteroptera / Q000033:anatomy & histology* / Q000145:classification; D008297:Male; D013045:Species Specificity