450 LIST OF DIPTERA. 



Group 8. 



Mas. Corpus mediocve, fjracile, fere nudum. Caput thorace 

 panllo latins. Facies plana, nuda. Mystax qnadriseiosus. Oculi 

 ma(Tni. Antennae sat longee ; avticiiliis lus linearis, 2o n)ulto 

 lonpior ; 2us dbeoniciis; 3us lonpifiisiformi*;, lo el 2o conjunctim 

 paullo lonfrior. Abilonien lon{,nobclavatum, apice niten*. Sexualia 

 magna. Pedes graciJes ; ungues et onycliia parva : tibiae anticje 

 calcaribiis parvis. 



Forks of tlie cubital vein slightly curved, their base a little 

 nearer than the end of the discal areolet to the tip of the wing. 

 Four extemo-medial veins proceeding nearly directly to the border ; 

 third and foui ih slightly inclined to each other, but at some distance 

 apart on the border; subaual joining the an:il on the border: 

 discal areolet nearly pentagonal, rather long and narrow. 



185. DASyPOGON limbithorax. 



Frem. Gracilis niger, antennte pedesque testaaa ; thorax vitlis 

 laieralibus albidis ; alee fuscana. 



Dasypogon limbithorax, Macq. Dipt. Exol. Suppl. \. 60, 34. 



Caffraria. 



liroup r 



A. Ala fnscne. - - - - . longicornis, Macq. 



B. Alae hyaline. 



A. Abdomen albo non macnlatuni. - - Olivicrii, Macq. 



B. Abdomen all)o niaculatiira. - - . ^Egyptius, Macq. 



186. Uasypooon longicornis. 



Mas. yiger, gracilis ,- antenna; capite duplo longiores ; scv- 

 telluvi, abdomen pidesque rtifa ; aht fusccF, basi Jlavescentei . 



Dasypogon longicornis, Macq. Dipt. Exnt. i. 2, 192. 

 Egypt. 



