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

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

genitalia of the Ghana specimens resemble less those illustrated by KlMMINS (1960) under the name E. Candida, than those drawn by GILLIES (1974) under the name Elassoneuria sp., the latter being possibly the enigmatic E. trimeniana (McLACHLAN, 1868). Distribution - Elassoneuria Candida was described from Nigeria, and mentioned since then only from Uganda. Elassoneuria cf. congolana NAVÀS, 1911 Material examined - GHANA: Northern Region, BANDA-NKWANTA, 2°09'W, 8°22'N, 122 m, 1 cT, 09.09.1965; (G072); same locality, 2 $?, 21.09.1965 (G081). All collected by S. ENDRŐDY-YOUNGA. Diagnostic features - We follow the explanation given by GILLIES (1974) and recognize E. congolana as species propria and not as a synonym of E. trimeniana (MCLACHLAN, 1868) as suggested by DEMOULIN (1970). The single male available shares with E. congolana three-segmented gonopods with the first segment lacking an inner spur, as well as a small size compared to others. The two females have spines on the subanal plate more than half the length of the lateral I Figs 5-6. Elassoneuria cf. Candida: 5 = half right genitalia of a male imago, 6 = left gonopod of another specimen