. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. REVISION OF THE BOMBYLIIDAE (DIPTERA) OF SOUTHERN AFRICA 603 It has some superficial resemblance to the $ of abruptus with which it may be easily confused. It however differs from most species with a basal and antero- costal infuscation in wings and from abruptus in particular in the following respects: It is relatively smaller, usually smaller than small specimens of abruptus. Vestiture with the scaling behind eyes shining silvery white, even dorsally across occiput; hairs and scales on sides of abd
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. REVISION OF THE BOMBYLIIDAE (DIPTERA) OF SOUTHERN AFRICA 603 It has some superficial resemblance to the $ of abruptus with which it may be easily confused. It however differs from most species with a basal and antero- costal infuscation in wings and from abruptus in particular in the following respects: It is relatively smaller, usually smaller than small specimens of abruptus. Vestiture with the scaling behind eyes shining silvery white, even dorsally across occiput; hairs and scales on sides of abdomen distinctly shorter, sparser and not so bushy as in abruptus; hairs on pleural part with fewer and less extensive black ones on mesopleuron and prosternal part; prealar bristles not black; white scales on sides basally of tergite 4 tending to be more extensively present. Wings (cf. Austen's figure, p. 161, loc. cit.) distinctly much broader and shorter, relatively broader than in all the preceding species, markedly broad across fourth posterior cell; a basal and antero-costal infuscation present in both sexes and to an equal extent, distinctly more extensive than in any other species with this type of infuscation, also occupying about or almost basal half of axillary lobe and extending more extensively into base of fourth posterior cell and occupying quite or almost basal third of discoidal cell and also extending a little beyond middle cross vein and base of second vein; first posterior cell markedly broad apically, not narrowed, tending to be as broad apically as second posterior cell and even as broad as or scarcely narrower than third apically; fourth posterior cell remarkably broad apically, relatively more so than in all the preceding species, including abruptus; discoidal cell relatively broad; middle cross vein nearer middle of discoidal cell than in most other species; halteres whitish, with conspicuously whitish or ivory white knobs. Head with the third antennal j
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
