﻿60 Aitnah of the South African Mtiseum. 



yellow, darkened at end ; no distiuct basal comlj ; linear alula very 

 narrow, not fringed, venation typical of the group. 



DiscHisTirs RUBicuNDUs, sp. nov., J . 



A species of middle size, witli elongate body and short wings, very 

 distinct owing to the colour of the antennae and legs, and by the 

 typical venation. The present species in coloration, shape and 

 disposition of the abdominal fur strongly recalls Bomhylivs 

 mundus, Loew, and some otlier species of the same group, which 

 were taken in the sanie locality and at the same time ; even the 

 specimens of D. rvhicundus, Wied., from the same locality, have a very 

 similar facies. 



Type, S '■> '*- single specimen from Bushmanland, Jackal's Water 

 (Cape), October, 1911 (R. M. Lightfoot). 



Length of the body 9 mm.; of a Aving 6'5 mm. ; spread 17 mm. 

 only. Head black, with dense gi'ey dust ; occiput much developed, 

 swollen, clothed with shoi-t and dense pale yellowish hairs, which 

 below are very short and become tomentose near the borders of the 

 eyes ; no black hairs behind ; ocellar tubercle less prominent with pale 

 hairs ; frons as broad as the ocellar tubercle, moderately broadened 

 forward, with dense yellow hairs. Face and cheeks with entirely yellow 

 hairs forming a scarce and short moustache, the lower hairs being 

 rigid and paler; beard scarce and short, whitish. Eyes dark red, 

 with irregular black spots and with equally small areolets. Antennae 

 approximate at the base, rather strong ; first joint of a pale reddish 

 colour, with sparse hairs, which are very short and whitish above, very 

 long and yellowish below, forming a tuft ; second joint of the same 

 colour as the first, and twice as long ; third joint deep black, as thick 

 as the first, truncate, very little attenuated at the extreme end, of even 

 shape thi'oughoiit ; terminal style very thin. Mouth-opening broad ; 

 proboscis short and strong, 2*5 mm. long, black above, dark red below 

 near the base, glabrous at end ; palpi yellow, thin, pale-haired. 

 Thorax black, densely clothed with very short pale yellowish hairs ; it 

 seems that on the back there are 4 longitudinal stripes of more yellow 

 pubescence, more distinct on the posterior half ; pleurae grey-dusted, 

 with short hairs and with some bai'e parts, but the metapleui'a with a 

 fine, whitish tuft ; the l)ristles are long, yellow ; below the notopleural 

 line, on the upper part of the pleurae, there is a dense tuft of short, 

 yellowish, bristly hairs. Scutellum red, black at base, grey-dusted, 

 clothed like the thorax with strong but short pale bristles on the hind 

 border. Squamae dirty pale-yellowish, with whitish fringe ; haltères 



