142 Annals of the South African Museum. 



palpi black, dark haired. Thorax black, with reddish postalar calli ; 

 it is clothed on the back with black hairs and yellowish scales, and 

 shows a stripe of whitish hairs on each side ; the macrochaetae are 

 well developed, black ; collar with yellow hairs above and below, 

 Pleurae grey-dusted, reddish below, with yellow hairs and some black 

 ones on the middle of the mesopleura and a few black bristles on the 

 pteropleura ; metapleura entirely yellowish-haired ; sternopleura with 

 a patch of silvery scales. Scutellum red, with black and black-scaled 

 base, with yellowish scales behind and on the sides, and with black 

 bristles. Squamae brownish black, with yellowish or whitish fringe ; 

 plumula whitish ; halteres black with paler knob. Abdomen elongate, 

 with parallel sides, obtuse at the end, flattened, black, with less 

 developed red spots on the sides of the 2nd and 3rd segment. The 

 middle and the base of the segments are clothed with black scales, 

 while those of the hind border are yellowish ; in addition, on the base 

 of 2nd segment and on sides of 3rd and 4th there are bands of 

 whitish scales ; the sides have short black hairs, only those of the 2 

 tirst segments being whitish. Male genitalia black, yellow-haired ; 

 spines of the ovipositor long, straight, black ; venter either entirely 

 red, or with more or less developed basal black bands on the segments, 

 clothed with white scales, and with white hairs at base, black at end. 

 Legs yellow, the tarsi and the hind tibiae being infuscate at apex ; 

 those of the front pair are much abbreviated, coxae with whitish hairs 

 at the base and with black ones at the end, the tibiae are very thick 

 and short, with well developed spicules, the tarsi are very short, with 

 short black pubescence ; femora with yellowish scales ; spines black ; 

 on the front pair are some short ones, on the middle pair 3-4, on the 

 hind pair a complete row ; claws black, with long acute tooth. Wings 

 long and broad, but narrow at base, the alula being small ; the basal 

 hook and the small comb are black ; the latter is clothed with yellow 

 scales. Wings wholly and equally blackened, with faint violaceous 

 reflexions and less distinct pale spots in the centre of the discoidal, 

 subniarginal and posterior cells, which in some specimens are more 

 distinct than in others, making the wings appear reticulate. There are 

 no distinct darker clouds at the usiial places. The alula is entirely 

 black and with blackish long fringe, even on the base of the axillary 

 lobe. Venation normal for the group ; discal cross-vein placed before 

 the middle of the discoidal cell ; apical cross-vein of the discoidal 

 cell very V-shaped and placed horizontally, the cell therefore shaped 

 as in Litorrhynchus ; first posterior cell a little broader than the anal 

 cell, second only a little uarroAver than the third, third very long. 

 Praediscoidal spot small and greyish. 



