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

• Author(s): Rosa, João Aristeu da [UNESP] ; Barata, José Maria Soares ; Barelli, Nilso [UNESP] ; Santos, Jair Licio Ferreira ; Belda Neto, Francisco Miguel [UNESP]
• Date: 2014
• Persistent ID: http://hdl.handle.net/11449/8016
• Origin: Oasisbr
• Subject(s): sexual distinction; scanning; nymphs; Triatominae
• Document Type: Journal article
• Language: English

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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.

UNESP Faculdade de Ciências Farmacêuticas

USP Faculdade de Saúde pública

UNESP Instituto de Química

USP Faculdade de Saúde Pública

UNESP Faculdade de Ciências Farmacêuticas

UNESP Instituto de Química