48 U.S. NATIONAL MUSEUM BULLETIN 277 



AUSTRALIAN SPECIES (MALES) 



1. Wing white 2 



Wing hyaline 3 



2. Halter knob red-brown, antenna brown, frons rugose 



S. bolgarti, new species 



Halter knob red-brown with a cream band separating the upper and lower 



halves, frons triangular, pebbly S. fragosifrons, new species 



3. Halter knob red-brown or brown, antenna brown or black-brown .... 4 

 Halter knob black, antenna brown S. perkinsi G. H. Hardy 



4. Halter knob brown, antenna brown, normal sized fly ... . S. biroi Kert^sz 

 Halter knob red-brown, antenna black-brown, very small fly 



S. minutus, new species 



AUSTRALIAN SPECIES (FEMALES) 



1. Wing smoky brown or white 2 



Wing hyaline 5 



2. Wing smoky brown 3 



Wing white 4 



3. Halter knob white, antenna red-brown, veins R5 and Ml + 2 separated at the 



wing tip S. spurrelli, new species 



Halter knob red-brown, antenna black-brown, wing with veins R5 and Ml +2 

 meeting at the wing tip S. darwini, new species 



4. Halter knob red-brown with a cream band dividing the upper and lower 



halves, antenna red-brown, frons pebbly, swollen 



S. fragosifrons, new species 

 Halter knob as above, antenna brown, frons rugose but not swollen 



S. bolgarti, new species 



5. Halter knob brown or red-brown 6 



Halter knob black S. perkinsi G. H. Hardy 



6. Halter knob brown, antenna orange-brown or brown 7 



Halter knob red-brown, antenna black-brown, a very small fly 



S. minutus, new species 



7. Antenna orange-brown darkening to brown at tip . . S. norrisi new species 

 Antenna brown S. biroi Kertdsz 



23. Scenopinus aethiopicus (Lindner) 



Figure 23 



Omphrale aethiopicus Lindner, 1955, p. 20. 



Female. — This appears to be a good species distinct from other 

 described African species. There are several characters that Lindner 

 overlooked; both specimens referred to in his description are females; 

 the type specimen had atrophied mouthparts as illustrated, while the 

 paratype had well developed mouthparts. Front with an elongate de- 

 pression above the antennae reaching over one-third the distance to 

 the ocellar triangle. Halter rounded at apex. The eighth sternum 

 appears to be characteristic but could not be illustrated in detail 

 along with the bursa as I was not granted permission to dissect. 



Male. — Unknown. 



Length: Female body 3-4 mm. 



