498 LIST OF DIPTEBA. 



Africa. 



A. Abdomen apice nigrum aut cinereum. 



A. Tibia: nigra. - - - - - - caffra, 3facy 



B. T\\)\m testacese. tibialis, Macq. 



B. Abdomen apice fulvum. .... analis, Macq , 



C. Abdomen rufum. ... - - imbuta, Walk 



9. DiSCOCEPHALA CaFFRA. 



Nigra; mystax albidus ; thorax flavohirtus ; abdomen cinereum : 

 alcB fuscce. 



Discocephala caffra, Macq. Dipt. Exot. Suppl. 1, 70, 4. 

 Caffiaria. 



10. Discocephala tibialis. 



Foem. Nigra ; thorax cinereus, vittis nigris ,• tiiice testacece ; 

 alee fusccE. 



Discocephala tibialis, Macq. Dipt. Exot. Suppl. 1, 69, 2. 

 CafiFraria. 



1 1. Discocephala analis. 



Nigra; mystax albidus; abdomen apice tibiceqne fulva; aim 

 fusccE. 



Discocephala analis, Macq. Dipt. Exot. Suppl. 1 , t)9, 3. 

 Port Natal. 



12. D1SCOCEPHA.LA IMBUTA. 



Mas. Niger; thorax vittis tribiis cinerei.i ; abdomen rufum; 

 pedes robuxti, nitidi, tibiis rufescoitibus apice nigris; ala 

 nigni-fusccc. 



Male. Black. Head with black hairs in front, with pale 

 tawny hairs behind and beneath. Thorax with three slight gray 



