DIPTERA. 457 
thorax; black, shining and transversely striated towards the tip, which is 
armed with black spurs. Legs piceous, with white spines; anterior 
femora red beneath; hind femora red, with piceous tips. Wings nearly 
limpid; veins ferruginous, very slightly clouded with brown. Halteres 
tawny. Length of the body 11 lines; of the wings 16 lines. 
Africa. 
Genus DISCOCEPHALA, Macq. 
Discocernara FERvIDA, Mas. 
Nigra, pilis longiusculis flavescentibus ; caput antice cinereo tomento- 
sum, postice subtusque canum ; abdomen rufo-fulvum, apice villaque 
ventrali nigris ; pedes flavi, femoribus tibiis et tarsorum articulis 
apice cowisque nigris, femoribus posticis subtus nigro spinosis; ale 
fusce, ad costam nigra, apud marginem posticum cinere@ ; halteres 
Serruginei. 
Black, clothed with rather long yellowish hairs. Head with cinereous 
tomentum in front, hoary behind and beneath. Thorax with cinereous 
stripes. Pectus hoary. Abdomen reddish tawny, black at the tip and 
with a black stripe beneath. Legs yellow, shining; coxe black; tips of 
the femora, of the tibiw and of the joints of the tarsi black; hind 
femora black for more than half the length from the tips, armed beneath 
with black spines. Wings brown, gray along the hind border, blackish 
along the costa; veins black, tawny atthe base. Halteres ferruginous. 
Length of the body 5 lines; of the wings 8 lines. 
Port Natal. 
Genus LAPHRIA, Fabr. 
LAPHRIA PURPURASCENS. 
Nigra, pilosa ; caput cinereum, subtus albidum alboque hirtum ; thorax 
albido unifasciatus et bivittatus, lateribus pectoreque albidis ; abdo- 
men purpurascens, apice fulvuum ; pedes cyaneo-nigri, albido pilosi ; 
ale subcineree, venis transversis fusco subnebulosis. 
Nearly allied to ZL. pyrrhopyga. 
s \ 
ee 7 
