Ultrastructure of Contact-Chemoreceptor Sensilla Found Among the Genae of Female Gasterophilus nasalis

Fernando de Freitas Fernandes; Edméia de Paula e Souza Freitas; Pedro Marcos Linardi; Paulo Filemon Paolucci Pimenta

doi:10.1645/GE-501R3.1

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1 October 2005 Ultrastructure of Contact-Chemoreceptor Sensilla Found Among the Genae of Female Gasterophilus nasalis

Fernando de Freitas Fernandes, Edméia de Paula e Souza Freitas, Pedro Marcos Linardi, Paulo Filemon Paolucci Pimenta

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J. of Parasitology, 91(5):1218-1220 (2005). https://doi.org/10.1645/GE-501R3.1

Abstract

Scanning electron microscopy was used to observe contact-chemoreceptor sensilla in the genae of the anterior vestigial mouthparts of female Gasterophilus nasalis. These were of the uniporous trichoid type and were surrounded by mechanosensory aporous trichoid sensilla of variable size. Contact-chemoreceptor sensilla could be involved in detecting different chemical substances, including the equine kairomones that stimulate females to lay eggs on the hair of the host and/or the short-range sexual pheromones used in precopulatory courtship. The probable functions of these sensilla are discussed with reference to the current literature on the sensorial organs of muscomorphid dipterans.

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Fernando de Freitas Fernandes, Edméia de Paula e Souza Freitas, Pedro Marcos Linardi, and Paulo Filemon Paolucci Pimenta "Ultrastructure of Contact-Chemoreceptor Sensilla Found Among the Genae of Female Gasterophilus nasalis," Journal of Parasitology 91(5), 1218-1220, (1 October 2005). https://doi.org/10.1645/GE-501R3.1

Published: 1 October 2005

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