oa Journal of the Entomological Society of Southern Africa - A new record of Compsoneuriella njalensis (Kimmins) (Ephemeroptera: Heptageniidae) from South Africa



During some ecological investigations of the Vaal river at Skandinawiadrift, 20 miles south-east of Potchefstroom, Transvaal, some mayfly material was collected which included nymphs of Compsoneuriella Ulmer. * Imaginal material reared from the latter closely resembled the descriptionption of C. njalensis (Kimmins) from Njala, Sierra Leone (Kimmins, 1932). Mr D. E. Kimmins of the British Museum (Nat. Hist.), London was subsequently consulted and he confirmed the fact, that, apart from a few differences in colour pattern, which may well be variable over the considerable distance separating the two localities, it was not possible to separate the Transvaal specimens from the C. njalensis type material in his possession.


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