﻿Ou tlif Boiiilii/liid Fdioia of South Africa (Dipfcra). 59 



Lmg yellowish hairs at the upper border, which become shorter aiul 

 paler below% but along the whole ocular border, in front of these hairs, 

 there is a fringe of thin but distinct black ones. Ocellar tubercle 

 black, with a tuft of long black hairs ; eyes with the upper areolets 

 distinct but little broader than the others; they are greatly prolonged 

 above, approaching each other to a distance which is only a little 

 ))roader than the breadth of the fore ocellus. The frontal triangle 

 is very short and very broad, with short yellowish hairs on the 

 middle and with dark ones on the sides ; cheeks clothed with 

 long, reddish hairs forming a rich moustache, but marginated 

 near the eyes with black hairs ; below this moustache are to be 

 seen the rntlier broad, shining black and bare mouth liorders. 

 Beard very dense, becoming longer l)ehind, of a dirty wliitish colour. 

 Antennae entii-ely black, rather separated at the base ; first joint long, 

 grey-dusted and distinctly thickened, clothed with very long and dense 

 hairs which are pale yellowish above and reddish below, with some 

 black hairs intermingled ; second joint globular ; third as long as the 

 first, but much thinner (almost spindle-shaped as in mysfax), but less 

 narrowed at the base, its terminal half being very thin, with a short 

 capillar style at the end. Proboscis entirely black, very long and 

 thin, with small terminal labella, 11 mm. long; palpi very long, as 

 long as the antennae, black, feathered with long and dense, rigid 

 hairs which are Itlack above and at apex, whitish l)elow, and also at 

 the base. Thorax and scutellum entirely of a dee}) black colour, 

 clothed with dense, equal yellowish hairs of moderate length ; on the 

 pleurae the hairs are paler and those of the breast are whitish, but the 

 metapleura is bare, concealed below the squamae and the mesopleural 

 tufts ; there are distinct, but thin, In-istly, black hairs at the posterior 

 end of the thorax and on the hind border of the scutellum. S(|uamae 

 dirty-w'hitish, with dark In-own border and very long and dense whitish 

 fringe ; haltères with a white knob. Abdomen entirely deep black, 

 clothed with hairs like those of the thorax, whitish-shiny from a front 

 view ; the black bristles at the hind border of the segments are very 

 numerous, forming complete rows, but they are very thin ; venter with 

 greyish hairs and without bristles ; genitalia black. Legs entirely 

 pale yellow, Imt the tarsi broadly black at the end and the femora 

 narrowly darkened at the base ; they ai-e pale-dusted, and the femora 

 have very long white hairs below, but only a few thin black hairs and 

 no spines ; the spicules of the tibiae are very long and numerous ; 

 claws red Avith black end ; pulvilli dirty-whitish, a little shorter than 

 the claws. Wings very short, entirely hyaline ; only at the extreme 

 base and in the costal cells have they a faint yellowish tinge ; veins 



