SCENOPINIDAE OF THE WORLD 93 



Type-locality: Ain-Sefra (Oran), Algeria; May and June [1897] 

 (M. Bleuse). 

 Type: (IRSNB). 

 Material examined: 1 9, Ghardaia, Algeria; May 1897, (IRSNB). 



BREVICORNIS group 



Key to Species of the brevicornis group 

 PALAEARCTIC SPECIES (MALES) 



1. Wing smoky brown or white 2 



Wing hyaline S. fraternus (Krober) 



2. Wing milky white 3 



Wing smoky brown 5 



3. Halter knob white; antenna black, cell R5 open at tip 4 



Halter knob white; antenna black; cell R5 constricted at tip 



S. brevicornis Loew 



4. Antenna (spindle form) pointed S. nitidulus Loew 



Antenna oval S. parallelus, new species 



5. Halter knob white or with tan bar 6 



Halter knob red-brown S. halteralis Frey 



6. Halter knob white; antenna black, body clothed with medium long thin hairs 



S. pilosus (S^guy) 

 Halter knob with a tan bar, antenna brown, body with sparse hairs 



S. unifasciatus (Krober) 



PALAEARCTIC SPECIES (FEMALES) 



1. Wing smoky brown 2 



Wing milky S. brevicornis Loew 



2. Halter knob white, antenna black or brown 3 



Halter knob tan, antenna black-brown S. lincinus, new species 



3. Antenna black 4 



Antenna brown S. unifasciatus (Krober) 



4. Halter knob long; tip of antenna pointed; vein R4 branching well beyond 



middle of cell R5 S. nitidulus Loew 



Halter knob round; tip of antenna rounded; R4 branching from near middle 

 of cell R5 S. fraternus (Krober) 



ETHIOPIAN SPECIES (MALES) 



1. Wing smoky white 2 



Wing smoky brown S. fryeri, new species 



2. Halter knob white, antenna black, vein M 1 -|- 2 ending before tip of wing . . 3 

 Halter knob red-brown, antenna yellow-brown, vein Ml + 2 ending behind 



tip of wing S. turneri, new species 



3. Cell R5 constricted beyond vein R4 S. minusculus (Sdguy) 



Cell R5 not constricted beyond vein R4 S. tarsalis (Krober) 



ETHIOPIAN SPECIES (FEMALES) 



1. Wing hyaline 2 



Wing smoky white or brown 3 



2. Halter knob yellow-brown, antenna brown-black. . . . S. tarsalis (Krober) 

 Halter knob reddish yellow, antenna dark brown with yellow tip 



S. nitidifrons (Krober) 



