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

Abad-Franch F, Pavan MG, Jaramillo-O N, Palomeque FS, Dale C, Chaverra D, Monteiro FA - Mem. Inst. Oswaldo Cruz (2013)

Bottom Line: 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.R. barretti occurs, often at high densities, in Attalea butyracea and Oenocarpus bataua palms.

View Article: PubMed Central - PubMed

Affiliation: Instituto Leônidas e Maria Deane, Fiocruz, Brasil, ManausAM, Instituto Leônidas e Maria Deane-Fiocruz, Manaus, AM, Brasil.

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.

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: Rhodnius barretti (left) and sympatric Rhodniusrobustus s.l. (right) from north-eastern Ecuador: general aspect ofadult specimens in dorsal view. The inset shows the head and pronotum of anatypical, paler form of  R. barretti.
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f03: : Rhodnius barretti (left) and sympatric Rhodniusrobustus s.l. (right) from north-eastern Ecuador: general aspect ofadult specimens in dorsal view. The inset shows the head and pronotum of anatypical, paler form of R. barretti.

Mentions: R. barretti Abad-Franch, Palomeque and Monteiro, sp. nov. ( Fig. 3 )


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

Abad-Franch F, Pavan MG, Jaramillo-O N, Palomeque FS, Dale C, Chaverra D, Monteiro FA - Mem. Inst. Oswaldo Cruz (2013)

: Rhodnius barretti (left) and sympatric Rhodniusrobustus s.l. (right) from north-eastern Ecuador: general aspect ofadult specimens in dorsal view. The inset shows the head and pronotum of anatypical, paler form of  R. barretti.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4109185&req=5

f03: : Rhodnius barretti (left) and sympatric Rhodniusrobustus s.l. (right) from north-eastern Ecuador: general aspect ofadult specimens in dorsal view. The inset shows the head and pronotum of anatypical, paler form of R. barretti.
Mentions: R. barretti Abad-Franch, Palomeque and Monteiro, sp. nov. ( Fig. 3 )

Bottom Line: 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.R. barretti occurs, often at high densities, in Attalea butyracea and Oenocarpus bataua palms.

View Article: PubMed Central - PubMed

Affiliation: Instituto Leônidas e Maria Deane, Fiocruz, Brasil, ManausAM, Instituto Leônidas e Maria Deane-Fiocruz, Manaus, AM, Brasil.

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.

Show MeSH
Related in: MedlinePlus