Rhodnius barretti, a new species of Triatominae (Hemiptera: Reduviidae) from western Amazonia.
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.
Instituto Leônidas e Maria Deane, Fiocruz, Brasil, ManausAM, Instituto Leônidas e Maria Deane-Fiocruz, Manaus, AM, Brasil.
Fernando
F
Abad-Franch
Laboratório de Epidemiologia e Sistemática Molecular, Laboratório de Epidemiologia e Sistemática Molecular.
Márcio G
MG
Pavan
Grupo de Biología y Control de Enfermedades Infecciosas, Instituto de Biología, Universidad de Antioquia, Colombia, Medellín, Grupo de Biología y Control de Enfermedades Infecciosas,Instituto de Biología, Universidad de Antioquia, Medellín, Colombia.
Nicolás
N
Jaramillo-O
Centro de Investigación en Enfermedades Infecciosas, Pontificia Universidad Católica del Ecuador, Ecuador, Quito, Centro de Investigación en Enfermedades Infecciosas, Pontificia Universidad Católica del Ecuador, Quito, Ecuador.
Francisco S
FS
Palomeque
Laboratório Nacional e Internacional de Referência em Taxonomia de Triatomíneos, Instituto Oswaldo Cruz, Fiocruz, Brasil, Rio de JaneiroRJ, Laboratório Nacional e Internacional de Referência em Taxonomia de Triatomíneos, Instituto Oswaldo Cruz-Fiocruz, Rio de Janeiro, RJ, Brasil.
Carolina
C
Dale
Grupo de Biología y Control de Enfermedades Infecciosas, Instituto de Biología, Universidad de Antioquia, Colombia, Medellín, Grupo de Biología y Control de Enfermedades Infecciosas,Instituto de Biología, Universidad de Antioquia, Medellín, Colombia.
Duverney
D
Chaverra
Laboratório de Epidemiologia e Sistemática Molecular, Laboratório de Epidemiologia e Sistemática Molecular.
Fernando A
FA
Monteiro
D000818:Animals; D028023:Arecaceae; D001499:Bayes Theorem; D014355:Chagas Disease / Q000453:epidemiology / Q000635:transmission*; D003105:Colombia; D045303:Cytochromes b / Q000235:genetics; D004463:Ecology; D017753:Ecosystem; D004484:Ecuador; D019353:Endemic Diseases; D010802:Phylogeny; D065947:Rainforest; D012239:Rhodnius / Q000033:anatomy & histology* / Q000145:classification*; D017421:Sequence Analysis; D013045:Species Specificity; D014225:Triatominae / Q000145:classification
D045303:Cytochromes b