Ditylomorphula brendelli n. sp. and new data on the genus Ditylomorphula in Southern Africa (Coleoptera, Oedemeridae)

A new species, Ditylomorphula brendelli n. sp., from northern Namib Desert (Angola) is described and illustrated. It is similar to D. espanyoliVazquez and D. marginipennis (Blair), from which it differs mainly by wider interocular area, pronotum not paler than elytra, median lobe evenly arcuate and not bent dorsally at apex, tegmen bent ventrally and parameres shortly and sparsely pubescent. In addition, the female of Ditylomorphula marginipennis is described for the first time on the basis of type material, and new data on the geographical distribution of Colobostomoides marshalli (Blair) and Ditylomorphula subfasciata (Blair) are given. Finally, some zoogeographical reflections are given and four chorotypes are proposed for the Southern African Oederneridae, based on the floristical regions currently recognised. Key words: Oedemeridae, Ditylomorphula brendelli n. sp., Zoogeography, Namib Desert, Afrotropical Region