Sexual distinction between 5th instar nymphs of six species of Triatominae (Hemiptera, Reduviidae)
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Graduate program
Undergraduate course
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Publisher
Instituto Oswaldo Cruz, Ministério da Saúde
Type
Article
Access right
Acesso aberto
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Abstract
The aim of this paper is to present the analysis of sexual morphological differences observed in 5th instar nymphs of the following species: Panstrongylus megistus; Rhodnius neglectus; Triatoma brasiliensis; T. infestans; T. matogrosensis and T. tibiamaculata. Male and female nymphs were examined and photographed with a Scanning Electron Microscope. The 9th segment dimensions of dorsal and ventral faces were determined through a Profile Projector. Results and statistical analysis showed significant differences: the 9th sternite is significantly broader in male than female nymphs, while in five species; tergites in female nymphs are broad and in male are narrow.
Description
Keywords
sexual distinction, scanning, nymphs, Triatominae
Language
English
Citation
Memórias do Instituto Oswaldo Cruz. Instituto Oswaldo Cruz, Ministério da Saúde, v. 87, n. 2, p. 257-264, 1992.
