158 Annals of the South African Museum. 



dark brown, especially inwardly ; scutellum and postnotum yellowish- 

 huff, the latter sparsely pale polliuose. Pleura pale whitish with 

 brown spots. Halteres slender, pale yellow, darkened toward the 

 knob, which is yellowish at the tip. Legs with the coxae pale with a 

 sparse whitish bloom : trochauters yellow ; femora dull brownish- 

 yellow, darkened towards the tips ; tibiae and tarsi dark brown. 

 Wings with a pale grey tinge, more whitish subhyaline on the apical 

 half ; costal cell pale brownish-yellow ; stigma prominent, rectangular, 

 dark brown ; tip of the wing iufuscated ; brown seams along the cord 

 and the veins excepting M and \st A ; a large white blotch before and 

 beyond the stigma and the whole area distad of the basal deflection of 

 Cu-i whitish subhyaliue ; veins dark brown, excepting Bs, R\ between 

 the origin of the sector and the stigma and the fork of M which are 

 light yellowish-orange ; numerous hairs in all the apical cells of the 

 wings. Venation (Plate XI, fig. 21), Rs short, oblique, tip of B. 2 

 atrophied ; fused portion of Cu-^ and M, that portion of M between 

 r-in and the first fork, and the petiole of -M\-j- 3 all subequal or the 

 second a little longer. 



Abdomen yellowish-orange, the tergites with the caudal half of each 

 -i'jmt-nt brownish-black ; sternites more uniformly yellow. 



Female. Similar to the male, but the antennae shorter and the 

 frontal prolongation of the head without the distinct, narrow, median 

 brown line. 



Habitat. South Africa. 



Holotype, J , Hottentot-Hollands Mountains, altitude 4000 ft., 

 Caledon, Cape Colony, 1915 (Barnard). 



Allotype, $ , Wiuterhoek Mountains, Tulbagh, Cape Colony, altitude 

 3600 ft.', April, 1916 (E. M. L.). 



Type in the South African Museum. 



i 



GEN. MEGISTOCERA, Wiedemann. 

 1828. Aussereur. Zweifl. Ins., vol. 1, p. 55. 



MEGISTOCERA BICAUDA, Speiser. 



1909. Dem Kilimaud., dem Meru Exped., Dipt. 10, Orthorr. 4, 



pp. 53, 54. 



One female, Dunbrody, Blue Cliff, Cape Colony, April 2nd, 1912, 

 agrees well with Speiser's description of the species, but the general 

 coloration of the fly is much darker than stated by Dr. Speiser, the 

 chestnut-brown shades, as described, being very dark brown. In spite 

 of these slight differences I believe it to be the same species ; the 

 cloudings on the wings are also a little more extensive than indicated 



