. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. A Revision of the Bombyliidae (Diptera) of Southern Africa. 641 Clanwilliam and Citrusdal (Mus. Exp., 1931) (Types). Namaqualand: Nieuwoudtville (Ogilvie, 18-22/11/31) (Imperial Institute). Central Karoo: Murraysburg (Mus. Exp., March 1930). S. Karoo: Ceres (Turner, 1920); Worcester (Turner, Dec. 1933) (British Museum). Easily recognised, especially in the #, by the dull greyish or greenish yellow pubescence when viewed from directly above and by the very pale luteous tibiae. From
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. A Revision of the Bombyliidae (Diptera) of Southern Africa. 641 Clanwilliam and Citrusdal (Mus. Exp., 1931) (Types). Namaqualand: Nieuwoudtville (Ogilvie, 18-22/11/31) (Imperial Institute). Central Karoo: Murraysburg (Mus. Exp., March 1930). S. Karoo: Ceres (Turner, 1920); Worcester (Turner, Dec. 1933) (British Museum). Easily recognised, especially in the #, by the dull greyish or greenish yellow pubescence when viewed from directly above and by the very pale luteous tibiae. From other species, such as natalensis n. sp. and kalaharicus Hesse with luteous tibiae, it differs in not having transverse rows of black bristles on abdomen above. G. chioneus Bezz. (P. 91, Ann. S. Afr. Mus., vol. xviii, 1921.) Two named specimens, a <$ and a $, from Willowmore, in the collection of the late Dr. Brauns, agree in every respect with Bezzi's description. The species is easily recognised by the long and slender proboscis, white pubescence, the darkened hair on antennae below and on side of face in <£, which is blackish along front mar- gins of eyes and more yellowish or greyish yellow towards rims of buccal cavity, by the yellowish tint at bases of hairs on occiput, the absence of black bristles on abdomen and the pres- ence of about 4-7 spines on hind femora below. The $, which appears not to have been described, has the hair on occiput, antennae Text-fig. 180.—Side view of hypopygium and and in mystax entirely oblique-dorsal view of beaked apical joint \ J of $ Gonarthrus chioneus Bezz. sericeous white, only some of the bristly ones on ocellar tubercle and frons being slightly more yellowish or greyish yellow in certain lights; interocular space on vertex a little less than 3 times as broad as tubercle; halteres with. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
