Contribution à l'étude des Hydroptilidae (Insecta : Trichoptera) de l'Afrique de l'Ouest : le genre Orthotrichia Eaton de la rivière Mouhoun (Burkina Faso)

Abstract

The present study deals with aquatic insects caught at fifteen stations along the river Mouhoun (formerly Black Volta) using artificial light. Twelve species were identified. Among them six are new species and described as : Orthotrichia guinkoi n. sp., O. dapola n. sp., O. prevoti n. sp., O. bolyi n. sp., O. mussoi n. sp., O. cazaubonae n. sp. Some species are recorded for the first time from Africa : O. verbekei Jacquemart, O. nova Marlier, O. alboguttata Jacquemart, O. petiti Jacquemart. Two species are already recorded from Africa : O. straeleni Jacquemart and O. aequatoriana Kimmins. For every species the distribution along the studied river is given. The distribution in Africa is also given for some species.