Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 98. (Budapest 2006)

Gattolliat, J.-L. ; Sartori, M.: The mayflies of Ghana (Insecta: Ephemeroptera)

processes of the 9th segment. Wing venation also fits what GILLIES (1974) reports for this species. Distribution - E. congolana was described from the Congo basin and has never been reported from any other country since then. If our identification is correct, this is the first report of this species for West Africa. Elassoneuria cf. disneyi GILLIES, 1974 Material examined - GHANA: Ashanti Region, Kumasi, 1°36'W, 6°43'N, 293 m, 3 $?, 03. 06.1967 (G224), S. ENDRŐDY-YOUNGA. Diagnostic features - Only females are available, but they differ greatly from those of the two previous species by their size, colouration and the length of the lateral processes of the 9th abdominal segment. They fit the diagnosis proposed by GILLIES (1974) for E. disneyi, but the lack of male imagoes refrains us to identify them with certainty. Distribution - Elassoneuria disneyi was described from Cameroon on the basis of male and female adults. Nymphs referred to that species are also mentioned from Liberia and Togo (GILLIES 1974), making this species restricted to this area at the moment. Elassoneuria sp. Material examined - GHANA: Ashanti Region, Kumasi, 1°36'W, 6°43'N, 293 m, 8 $$, 06.07.1967 (G232), S. ENDRŐDY-YOUNGA. Diagnostic features - This material is represented only by damaged females. Any attempt to identify them would be preposterous. TRICORYTHIDAE Dicercomyzon cf. femorale DEMOULIN, 1954 Material examined -GHANA: Ashanti Region, Kwadaso/Kumasi, 1°39'W, 6°42'N, 259 m, 1 9, 04.08.1969 (G224), S. ENDRŐDY-YOUNGA. Diagnostic features - The proposed identification is very speculative since it is much more based on the absence of characters than proper features. Among the