, 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
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
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
palms. It is strikingly aggressive and adults may invade houses flying from peridomestic palms. R. barretti
must therefore be regarded as a potential
vector in the Napo ecoregion, where Chagas disease is endemic.