﻿Ov the Bomhyliid Favna of South Africa (Dlftpra). 77 



entirely blaclv ; the hairs on the pleurae are whitish or pale yellowish, 

 but iu the male those of the lower part and of the l)reast are blackish. 

 Haltères with white knob ; squamae pale-yellowish, white frin^-ed, like 

 the plumula. Abdomen shining black, clothed with equal hairs, 

 which are denser in the male, of a pale yellowish colour and shining- 

 white if looked at from the front ; venter black, with short and scarce 

 pale hairs. Femora black, with yellow tip, clothed below with dense 

 and long hairs, partly whitish and partly dark, these last being some- 

 times predominant ; tibiae and tarsi red, the hind tibiae being ciliated 

 outwards, more densely in the male than in the female ; last tarsal joint 

 black; claws black with red<lish base ; pulvilli yellowish. Wings as in 

 nigripes, but with a distinct milky-white tinge. 



CoRSOMYZA CLAVicoRNis, Wiedemann (1819). 



Closely allied to hirtipesi, but distinguished by the usually much 

 smaller size and by the entirely black face and black legs. Descril)ed 

 from a male from the Cape, and subsequently recorded from the same 

 locality by Walker. There are in the collection a male from Dunbrody, 

 Uitenhage (Cape), Decern 1)er, measiu-ing G mm. of length, a female 

 from ISTamaqualand, Port NoUoth (Cape), August, 1890, 6-5 mm. long 

 (R. M. Lightfoot), and a doubtful female from the same locality, 

 only 4 mm. long. 



Head exactly as in nlgrij^es, but the black outline of the facial 

 brush is less developed and the first antennal joint has no black tuft 

 beneath ; beard pale yellowish ; eyes with the division of the broader 

 areolets less marked than in all the preceding species. Third antennal 

 joint very characteristic, thin and filiform basally, much broadened 

 apically on the last third or more, and with the lu'oadened part 

 incised beneath. Proboscis black, proportionally long, measuring 

 about 3 mm. ; palpi black, long, with a sparse black pile. Thorax, 

 scutelkun and abdomen as in nigripes, but the pleurae and breast 

 with entirely whitish hairs. Haltères yellow, with a white knob ; 

 squamae and plumula with a white fringe. Legs entirely black, the 

 femora with long and numerous white hairs below, which only on the 

 front pair are more fuscous ; hind tiliiae shortly and scarcely ciliated 

 outwards ; claws black, pulvilli dirty-yellowish. 



The female is very like the male, the frons being almost twice as 

 broad. The broadened end of the third antennal joint is thinner and 

 more regular ; the fur of the body is coarser. 



In a female specimen from Hottentots Holland Mountains, 

 Caledon, C.C, 191G (K. H. Barnard), the upper branch of the cubital 



