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Sites and abundance of chemoreceptors on the legs of tsetse, Glossina tachinoides (Diptera: Glossinidae)

Published online by Cambridge University Press:  19 September 2011

F. D'Amico ,
B. Geoffroy ,
D. Cuisance  and
J. P. Bossy
F. D'Amico
Affiliation:
ORSTOM Montpellier, Département Santé, 2051, av. du Val de Montferrand, BP 5045, F-34032 Montpellier Cedex
B. Geoffroy
Affiliation:
ORSTOM Montpellier, Département Santé, 2051, av. du Val de Montferrand, BP 5045, F-34032 Montpellier Cedex
D. Cuisance
Affiliation:
IEMVT-CIRAD, 2051, av. du Val de Montferrand, BP 5045, F-34032 Montpellier Cedex
J. P. Bossy
Affiliation:
INRA-Station de Recherches de Pathologie Comparée, Service de Microscopie Electronique, F-30380 Saint-Christol-lez-Alès
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Abstract

Light and scanning electron microscopy investigations were carried out to identify and count the chemoreceptors on the legs of the tsetse, Gbssina tachinoides Westwood, and topographical maps, considered of value in electrophysiological and behavioural research are presented. The candidate chemoreceptors are located on the femorae, the tibiae and the tarsi and are more abundant on the ventral zone of each segment. The study demonstrates that the prothoracic, mesothoracic and metathoracic legs have a similar number of chemoreceptors and male flies possess more than female (1033 and 570, respectively). The variability of the number of chemoreceptors on the prothoracic legs has been estimated in both sexes.

Résumé

L'identification et le comptage des chimiorécepteurs ont été établis en microscopie classique et en microscopie électronique à balayage sur les pattes de Glossina tachinoides Westwood, 1850. Les auteurs présentent une carte de répartition des chimiorécepteurs, utile pour les recherches d'électrophysiologie et de comportement. Ces chimiorécepteurs localisés sur le fémur, le tibia et le tarse sont plus abondants sur les zones ventrales. Cette étude montre que les 3 paires de pattes possèdent un nombre similaire de chimiorécepteurs et un important dimorphisme sexuel: 1033 chimiorécepteurs chez le mâle centre 570 chez la femelle. La variabilité du nombre de chimiorécepteurs pour les deux sexes a été estimée sur la patte prothoracique.

Keywords

TsetseGlossina tachinoideschemoreceptorstopographyabundancelegsSEMMouche tsétséGlossina tachinoideschimiorécepteurstopographieabondancepattesMEB
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 13 , Issue 6 , December 1992 , pp. 781 - 786
Copyright
Copyright © ICIPE 1992

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