DIPTERA. 457 



thorax; black, shining and transversely striated towards the tip, wliich 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. 



DiSCOCEPHALA FERVIDA, MaS. 



Nigra, pilis longiusculis Jlavescentibus ; caput antice cinereo tomento- 

 sum, postice suhtuaque canum ; abdomen rufo-fulvum, apice viltaque 

 ventrali nigris ; pedes Jlavi, femoribus tibiis et tarsorum articulis 

 apice coxisque nigris, femoribus posticis sublus nigro spinosis ; alee 

 fuscce, ad costam nigrce, apud marginem posticum cinerece ; halteres 

 ferruginei. 



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 ; coxae black ; tips of 

 the femora, of the tibiae 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, lawny at the base. Halteres ferruginous. 

 Length of the body 5 lines ; of the wings 8 lines. 



Port Natal. 



Genus LAPHRLA, Fabr. 



LaPHRIA PUUl'UKASCENS. 



Nigra, jnlosa ; caput cinereum, subtus albidum alboqiie, Itirtum ; t/iorux 

 albido unifasciatus et biv'ttlatus, luteribus pectorcquc albidis ; abdo- 

 men purpurascen.s, apice fulvum ; pedes cyaneo-nigri, albido pilosi ; 

 al<e subcinerece, venis (ransversis fusco subnebulosis. 



Nearly allied to /.. pijrrhopgga. 



