. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. A Revision of the Bombyliidae (Diptera) of Southern Africa. 423 basal cell and base of anal cell, with the costal cell, first and second basal cells and extreme base in both sexes distinctly more opaquely yellowish, with the veins brownish, more reddish brown towards base and along first longitudinal vein, with the basal comb black and with very pale yellowish sericeous scaling behind it, with the squamae opaquely yellowish white and fringed white or very pale yellowish white; halteres brownish, with


. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. A Revision of the Bombyliidae (Diptera) of Southern Africa. 423 basal cell and base of anal cell, with the costal cell, first and second basal cells and extreme base in both sexes distinctly more opaquely yellowish, with the veins brownish, more reddish brown towards base and along first longitudinal vein, with the basal comb black and with very pale yellowish sericeous scaling behind it, with the squamae opaquely yellowish white and fringed white or very pale yellowish white; halteres brownish, with yellowish white knobs. Head with the interocular space in $$ about as broad as ocellar tubercle, narrowest part in front of front ocellus only very slightly narrower than tubercle is broad across lateral ocelli, quite 3J times as broad as tubercle in $$; an- tennae with joint 3 subequal to or a little longer than 1 and 2 combined, broadest near base, slightly broader in $$, with joint 1 about 3 times as long as 2; proboscis slender, about 3-4 mm. long. Wings in 3d slightly longer and narrower than in $?, slightly Text-fig. 107.—Ventral view of hypo- , , . ,, . __ pygium of <J of Systoechus nigripes var. more rounded apically in ??. pie%eius n. Legs with 1-3 apical spines above on front and middle femora; front ones unarmed below or with only a small spine towards apex below in front; middle ones with 2-4 spines in front and 1-2 small ones behind; hind ones with about 5-9 larger and smaller spines below. Hypopygium of £ (text- figs. 106 and 107) as in typical forms of nigripes. Types in the South African Museum. Length of body: about 5-8 mm. Length of wing: about 6-8 mm. Locality.—Namaqualand: Garies Distr.; Klip Vlei (Mus. Exp, Nov. 1931) (Types); Bowesdorp (Mus. Exp., Nov. 1931); Kamies- kroon (Mus. Exp., Sept. 1930). E. Cape Province: Karoo; Somerset East (Turner, Nov. 1930) (British Museum). This is one of the commonest Bombyliids in Namaqualand, and it is surp


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky