﻿On the Bomhyliid Fauna of South Africa (Diptera). 33 



discoidal cell, whicli is l)road aud short ; second posterior cell loui^^er 

 than broad ; third posterior cell in the shape of a trapeze. Basal 

 comb well developed, consisting' entirely of black bristles, with only a 

 few white scaly hairs above. 



BOMBYLIUS PERINGUEYI, sp. nOV., (^ , 9 • 



An elegant species, very distinct owing to the brown hairs of tlie 

 thorax contrasting strikingly Avitli the white ones of the middle of the 

 abdomen ; the wdngs ai-e not spotted, but distinctly infuscated towards 

 the base and along the costïil cell. 



Type f^ and type $ from Ivlipfontein, Namaqualand (Cape), 1885 

 (L. Pc'ringuey), the first specimen labelled by Bigot ^' Systoechus 

 pt'rimjiieyi, nov." ; an additional female specimen from Spektakel, 

 Namaqualand (Cape), October, 1890. I take pleasure in preserving 

 for this beautiful species Bigot's MS. name in honour of the Director 

 of the South African Museum, whose high merits in entomology are 

 so greatly appreciated. 



By the bristles of face and thorax the present species approaches 

 those of the preceding group. 



Length of body 11-12 mm. Head with wholly white hairs, but with 

 brown hairs on the vertex and on the upper part of the f rons ; occipital 

 hairs moderately long, but sometimes partly infuscated and with some 

 bristles intermingled ; on the genae there are some more or less distinct 

 bristles of white or yellowish colovu-, more developed in the female 

 than in the male. Antennae elongate, black, but the second joint 

 sometimes brownish ; the third linear, a little longer than the first ; 

 proboscis black, thick, 4-5 mm. long. Frons of the male rather 

 broad, and that of the female nearly twice as broad, with distinct 

 bristles on the sides. Thorax clothed with rather long and dense 

 brownish hairs, which, seen in a certain light, are shiny white ; 

 pleurae white-haired ; there are very numerous yellowish bristles 

 on the fore part, on the sides and behind. Squamae brown, with 

 yellowish or greyish fringe ; haltères yellowish, with whitish knob. 

 Scutellum red with black base, clothed, like the back, with yellowish 

 and thin bristles behind. Abdomen with dense, erect white hairs, 

 but at end with a fine tuft of brownish ones, coloured like those 

 of the thorax ; on the sides of the first segment there are broad tufts 

 of brownish hairs, with similarly coloured bristles ; the last two 

 segments in the male and the last three in the female bear rows of 

 strong and long bristles of a blackish colour with yellow base ; the 

 hairs at the end of abdomen are tuft-like ; venter with dense white 

 hairs, in the male almost without distinct bristles, in the female with 

 3 



