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

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

Caenis sp. Material examined - GHANA: Northern Region, Banda-Nkwanta, Volta, 2°09'W, 8°22'N, 122 m, 2 $$,05.09.1965 (G071); Ashanti Region, Kumasi, Volta, 1°36'W, 6°43'N, 293 m, 10 $$, 06.07.1967 (G232); same locality, 25 $$, 04.02.1968 (G297); 2 $$, 28.05.1967 (G221); 13 $$, 10.12.1967 (G290); 1 $, 03.02.1968 (G296); 12 $$, 25.07.1967 (G220). All collected by S. ENDRŐDY-YOUNGA. Diagnostic features - This material is exclusively composed of females for which specific identification is impossible at the moment. EPHEMERIDAE Eatonica crassi MCCAFFERTY, 1971 Material examined -GHANA: Northern Region, Banda-Nkwanta; 2°09'W, 8°22'N, 122 m, 2 $$, 01.10.1965 (G088); same locality, 1 $, 07.10.1965 (G089); 5 $$, 14.10.1965 (G090). All collected by S. ENDRŐDY-YOUNGA. Diagnostic features - Only females were available in the studied material. Nevertheless they were identified with confidence to this species based on the dorsal abdominal colour pattern, with paired stripes slightly concave instead of convex as in the closely related E. schoutedeni (MCCAFFERTY 1971, MCCAFFERTY & GILLIES 1979). As already observed by ELOUARD & FORGE (1978), only females of this species seem to be attracted to light. Distribution - Eatonica crassi is known from Sudan, Tanzania, Malawi (MCCAFFERTY 1971), as well as Ivory Coast, Mali and Guinea (ELOUARD 1986). Its presence in Ghana is therefore not surprising. Eatonica patriciae ELOUARD, 1986 Material examined - GHANA: Brong-Abafo Region, Volta basin, Black Volta river at Bui camp, 2°15'W, 8°17'N, 106 m, 1 $,06.11.1965 (G98), S. ENDRŐDY-YOUNGA. Diagnostic features - The single female specimen available fits the description given by ELOUARD (1986). This species is larger than E. crassi and the pattern of the abdominal stripes is identical to those described by him. This specimen has also been compared to a female paratype deposited in our collections. Distribution - Eatonica patriciae is mentioned here for the first time since its description from Guinea.