Sexual distinction between 5th instar nymphs of six species of Triatominae (Hemiptera, Reduviidae)

Memórias do Instituto Oswaldo Cruz

João Aristeu Da Rosa²  José Maria Soares Barata¹  Nilso Barelli¹  Jair Licio Ferreira Santos¹  Francisco Miguel Belda Neto² 

[1] ,UNESP Faculdade de Ciências Farmacêuticas Araraquara,Brasil

关键词: sexual distinction;    scanning;    nymphs;    Triatominae;   

DOI  :  10.1590/S0074-02761992000200014

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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