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Sometimes, the size matters: Wing geometric morphometrics as a tool to assess domiciliation by Triatoma sordida (Stäl 1859)

ABSTRACT

Background:

Domiciliation by Triatoma sordida is a public health concern in South America. This study aimed to evaluate the morphometric changes in the domestic and peridomestic populations of T. sordida.

Methods:

Specimen hemelytra were mounted, digitized, and processed for geometric morphometric analyses.

Results:

The specimens captured in houses were smaller than those captured in peridomiciles. A large size reduction effect was observed in female peridomicile populations compared with female house populations.

Conclusions:

T. sordida house populations were smaller than peridomestic populations. Wing geometric morphometry can be used as a tool to indicate T. sordida domiciliation.

Keywords:
Triatomines; Domiciliation; Morphometry

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