Rhodnius barretti, a new species of Triatominae (Hemiptera: Reduviidae) from western Amazonia

ABSTRACT: Rhodnius barretti, a new triatomine species, is described based on adult specimens collected in rainforest environments within the Napo ecoregion of western Amazonia (Colombia and Ecuador). R. barretti resembles Rhodnius robustus s.l., but mitochondrial cytochrome b gene sequences reveal t...

Full description

Autores:
Abad Franch, Fernando
Pavan, Márcio Galvão
Jaramillo Ocampo, Nicolás
Palomeque, Francisco
Dale, Carolina
Chaverra Rodriguez, Duverney De Jesus
Monteiro, Fernando
Tipo de recurso:
Article of investigation
Fecha de publicación:
2013
Institución:
Universidad de Antioquia
Repositorio:
Repositorio UdeA
Idioma:
eng
OAI Identifier:
oai:bibliotecadigital.udea.edu.co:10495/23655
Acceso en línea:
http://hdl.handle.net/10495/23655
Palabra clave:
Amazonia
Mitochondrial DNA
ADN mitocondrial
Rhodnius barretti
Rhodniini
Geometric morphometrics
http://aims.fao.org/aos/agrovoc/c_32372
http://aims.fao.org/aos/agrovoc/c_1354029675295
Rights
openAccess
License
http://creativecommons.org/licenses/by/2.5/co/
Description
Summary:ABSTRACT: Rhodnius barretti, a new triatomine species, is described based on adult specimens collected in rainforest environments within the Napo ecoregion of western Amazonia (Colombia and Ecuador). R. barretti resembles Rhodnius robustus s.l., but mitochondrial cytochrome b gene sequences reveal that it is a strongly divergent member of the “robustus lineage”, i.e., basal to the clade encompassing Rhodnius nasutus, Rhodnius neglectus, Rhodnius prolixus and five members of the R. robustus species complex. Morphometric analyses also reveal consistent divergence from R. robustus s.l., including head and, as previously shown, wing shape and the length ratios of some anatomical structures. R. barretti occurs, often at high densities, in Attalea butyracea and Oenocarpus bataua palms. It is strikingly aggressive and adults may invade houses flying from peridomestic palms. R. barretti must therefore be regarded as a potential Trypanosoma cruzi vector in the Napo ecoregion, where Chagas disease is endemic.