[Phlebotomus of Senegal: survey of the fauna in the region of Kedougou. Isolation of arbovirus].

Phlebotomine sand-flies were captured on a bimonthly basis from April 1995 to March 1996 in the Kedougou district of south-east Senegal. In all, 6,642 specimens were identified belonging to 25 species. Eleven species were captured in tree holes, 17 in termites hills, 19 in rodent burrows and 23 on grass. Sergentomyia buxtoni, S. clydei, S. dubia, S. squamipleuris et S. schwetzi were the most abundant. Species from the genus Sergentomyia accounted for 99.3% versus 0.7% for the genus Phlebotomus, Phlebotomus duboscqi, the leishmaniasis vector in Senegal, was very rare. The male of S. edentula and S. herollandi were recorded for the first time. The sand-fly population was observed to peak in April. The most populated resting sites were, in decreasing order, termite-hills, burrows and tree-holes. Thirty virus strains from 5 different viruses (Saboya, Chandipura, Tete, ArD 95737, ArD 111740) were isolated from 30,482 specimens tested.