Determination of the insemination time of the Glossina palpalis Robineau Desvoidy, 1830 in the forest belt of Daloa, Côte DʹIvoire

The observations on the insemination of the Glossina palpalis have been made in the forest belt of Daloa in the Côte dʹIvoire through the test of the spermathecae of females caught in different biotopes. The testing of 8342 Glossina show that the ratio of females with empty spermathecae is low, with a rate of 0.88%. Most of the captured Glossina are tenerals or tsetse flies which have not yet been fed. We did not find a single virgin female among the young parous Glossina above the age of 9 days. However out of 3841 very old Glossina, 0.08% were found with empty spermathecae. Our results suggest that the Glossinaʹs insemination took place earlier within the G. palpalis type, a few days before the adult (between 1 and 3 days).