﻿Oil the Bnmln/llld Fauna of 8oi(th Africa {D'qytera). 5;:} 



second at the base, with the terminal part less attenuated. Proboscis 

 entii-ely blaclc, 4 mm. long-, its basal i-ino- with yellow border like i\w 

 peristome; palpi blackish. Thorax black, faintly shining-, clothed witli 

 dense and equal, rather long hairs which are light yellowish and 

 shining silvery on the back and whitish on the pleura and below ; there 

 are no bristles in front, and the notopleural and postalar bristles are 

 thin and yellowish. Scutellum dark red on the disc, black at the base 

 and on the borders, clothed, like the thorax, with indistinct bristles at 

 the hind border. Squamae dirty white, with yellowish border and 

 with whitish fringe ; haltères yellow, with whitish knob. Abdomen 

 elongate, black, rather shining ; the narrow lateral border (not the 

 hind border of the segments) and the venter are red ; it is clothed 

 w\itli dense and long soft hairs, which are coloured like those of the 

 thorax, but are paler on the sides and at end, becoming wdiite on the 

 venter. The bristles at the hind border of the segments are well 

 developed only on the last segments, and ai"e thin and of a darker 

 brownish-yellow colour ; the fur is not tuft-like ; on the venter there 

 are no distinct bristles. Legs pale yellow ; tlie femora are black, with 

 onlv the tip yellow, more broadly so on the 2 anterior pairs, but 

 they are clothed wdth white scales and with white hairs below near the 

 base ; all the bristles are thin and of a wdiitish colour ; front femora 

 without anv, middle femora with 2, hind femora with 4-5 spines 

 below; claws black, with a red base; pulvilli almost wanting. Wings 

 entirely hyaline, the extreme base and tlie costal and first basal cells 

 with a less distinct greyish tinge ; basal comb small, with entirely 

 white bristles ; alula hyaline, white fringed ; veins reddish-yellow, 

 darkened at end ; discoidal cell less obtuse, with the terminal vein 

 only a little longer or as long as the discal cross-vein ; first posterior 

 cell narrower than the discoidal cell, which is a little longer than the 

 second posterior cell. 



Female. — Length of l)ody 55 mm. ; of the wing expanse 14 mm. 

 Doubtfully the same species, but taken at the same place and time 

 with the male, and half the size of it. Frons exceedingly broad, three 

 times as broad as the eye, Avith numerous bristles on the sides, which 

 are of a dark yellowish-brown coloiu- ; on the face there are no distinct 

 bristles, but only a few bristly hairs of the same colour as the 

 surrounding pubescence ; the antennae are of the same shape as in the 

 male, but the first joint is pale yellow. Thorax as in the male, but 

 with numerous yellowish bristles below the notopleural line. Abdomen 

 with* more numerous, stronger and longer dark bristles, which, however, 

 are set only at the end ; in the middle the rows are incomplete. Legs 

 ami wino-s exactly as in the male. 



