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Memórias do Instituto Oswaldo Cruz

versão impressa ISSN 0074-0276versão On-line ISSN 1678-8060


PIRES, Herton Helder Rocha et al. Variations of the External Male Genitalia in Three Populations of Triatoma infestans Klug, 1834. Mem. Inst. Oswaldo Cruz [online]. 1998, vol.93, n.4, pp.479-483. ISSN 0074-0276.

Triatoma infestans is the triatomine that presents the greatest dispersion area in South America. However, it is not known whether the original characteristics of this insect remained in its long dispersion process. The purpose of this work was to study comparatively the external male genitalia of insects from different populations of T. infestans, two from Brazil (Minas Gerais and Bahia) and one from Bolivia (Cochabamba Valley), and to investigate the correlation between the morphological and behavioral variations. Differences were observed in one of the structures of the external genitalia (endosoma process) that could be used to characterize the insects from the three populations studied.

Palavras-chave : Triatoma infestans; male genitalia; populational variation.

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