Notes on the Nomenclature of certain African Tabanidae (Sub-family Pangoniinae), with Descriptions of a new Genus and new Species
Some six years ago, it was correctly pointed out by Brèthes (Bull. Soc. Ent. de France, 1914, p. 59) that the generic designation Diatomineura, Round. (Archiv. Zool. Anat. Fisiol. iii, p. 84, 1864), is a synonym of Osca, Walk., (Ins. Saund., Diptera, Part i, p. 10, 1850—nec Walk., 1864, nec Sta;l, 1871). The first species mentioned by both Walker and Rondani is Pangonia depressa, Macq. (=Erephopsis lata (Tabanus latus), Guér.), and this species is designated by Brè as the genotype. Erephopsis lata, Guér., of Kertész’s Catalogus Dipterorum (iii, p. 165, 1908), must therefore be known henceforth as Osca lata, Guér., and the South African Tabanus barbatus, L. (Pangonia barbata, Auct.), and Pangonia fulvifascia, Walk., must be transferred to the genus Osca.