title: [A new species of the oliveirai complex (new designation for matogrossensis complex) from the State of Rio Grande do Sul, Brazil].
abstract: The authors describe a new species of Triatominae (Hemiptera, Reduviidae) from the State of Rio Grande do Sul, Brazil. The study was made with specimens captured in basaltic formations, at an average altitude of 750 m.o.s.l. The new species is included in the oliveirai complex together with other four species T. williami, T. matogrossensis, T. guazu and T. jurbergi). The new species was compared with the most similar one, T. oliveirai, from which the main differences are on the proportions of head, ante and postocular regions, the general color pattern and the male genitalia, specially on the median process of the pygophore, the support of phallosome, the vesica and the process of the endosome.
authors: Laboratório Nacional e Internacional de Referência em Taxonomia de Triatomíneos, Departamento de Entomologia, Instituto Oswaldo Cruz, Rio de Janeiro, RJ, 21045-900, Brasil. carcaval@gene.dbbm.fiocruz.br
authors: R U
authors: RU
authors: Carcavallo
authors: J
authors: J
authors: Jurberg
authors: H
authors: H
authors: Lent
authors: C
authors: C
authors: Galvão
authors: M
authors: M
authors: Steindel
authors: C J
authors: CJ
authors: Carvalho Pinto
mesh_terms: D000818:Animals; D001938:Brazil; D005260:Female; D008297:Male; D014225:Triatominae / Q000033:anatomy & histology / Q000145:classification* / Q000235:genetics