Capture de Glossina palpalis palpalis (Rob. Desv.), 1830 faite au piege biconique et sur captureur dans differents biotopes de la region de Daloa (Cote d'Ivoire)

Abstract

Fly catching experiments using the biconical trap and a vector collector (under mosquito net) were performed in different biotopes of the forest zone in Cote d'Ivoire (Daloa region).Of the three species of tsetse usually caught, Glossina palpalis, and to a very minor degree Glossina pallicera, was attracted to man. G. palpalis showed vis-a-vis man a clear difference in attractiveness according to the point of capture. In those habitats where hosts were rare and dispersed (gallery forest, coffee and cocoa plantations) this species frequently attacked man who came into contact with it during the accomplishment of his usual activities, whereas in the village it voluntarily abandoned him in preference for pigs. Whatever the type of biotope, the trap had the same attractiveness. Its use, in contrast to captures on man, enabled a simultaneous study of diverse species that co-existed anthropophilically or zoophilically.Although almost all the tsetse taken in the trap or on vector collector were hungry, it was noticed that the number of females in the trap samples was always higher than that of males.