. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 566 ANNALS OF THE SOUTH AFRICAN MUSEUM markedly conspicuous; second vein rather markedly sinuous; first posterior cell very broadly open apically; middle cross vein at about basal fourth or between it to nearly or even at about basal third of discoidal cell; squamae dirty whitish or yellowish, pale- or white-fringed; knobs of halteres dirty yellowish, yellowish brownish to pale brownish. Head with the interocular space on vertex in o* about or nearly twice width of ocellar tubercle (which in $ is nar


. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 566 ANNALS OF THE SOUTH AFRICAN MUSEUM markedly conspicuous; second vein rather markedly sinuous; first posterior cell very broadly open apically; middle cross vein at about basal fourth or between it to nearly or even at about basal third of discoidal cell; squamae dirty whitish or yellowish, pale- or white-fringed; knobs of halteres dirty yellowish, yellowish brownish to pale brownish. Head with the interocular space on vertex in o* about or nearly twice width of ocellar tubercle (which in $ is narrowish and elongated) and in $ about 2 J to nearly or about 3 times width of tubercle; antennal joint 1 markedly short, only about as long as or scarcely longer or only a little longer than joint 2; joint 3 flask- or bulb-shaped, its broad bulbular base rather rapidly narrowed apicalwards, especially below, to a relatively short slender part which is not well demarcated from broad base, ending apically in a terminal joint nearly or about as long as slender part or longer than joint 2. Legs with 1 or 2 spines on middle femora anteriorly near apex below; hind ones with about 3-5 spines below. Hypopygium of $ differs from that of uroganus in having the scoop-like aedeagal process distinctly shorter and broader than long and its medial dorsal prominences more prominent. Last sternite of $ (text-fig. 191) with the dorso-apical angles rounded, not acute, and the indentation also more angular. From 11 <$£ and 5 $$ in the South African Museum. Length of body: about 3^-6 mm. Length of wing: about 3J-5J mm. Locality. Western Cape: Bulhoek between Clanwilliam and Klawer in the Olifants River Valley (Mus. Exp., Oct. 1950) (types). Namaqualand: Kamies- kroon (Mus. Exp., Nov. 1936). Tankwa Karoo: Renoster River (Mus. Exp., Nov. 1952). This species appears to be slightly variable in size, in the intensity of the dark hairs on pleurae and the infuscation in the wings, especially in the §.


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky