The identity of Anisocentropus species (Trichoptera: Calamoceratidae) from Nigeria with description of the adult male

Abstract

An adult male reared from the larva of Anisocentropus sp. earlier reported from Ile-Ife, Nigeria was identified as A. unsambarensis Ulmer, 1908. It is described and illustrated with emphasis on the morphology of the wings. It is compared with other species of the genus so far described from the Afrotropical region. Apart from the morphology of the genitalia, A. unsambarensis can be differentiated from the other species on the basis of wing venation. There are three crossveins in the forewing of A. unsambarensis unlike in the other species where there are either six or seven. The venation of the hind wing is close to that of A. voeltzkowi Ulmer, 1909, but differs in having only one crossvein.