478 Miss G. liicanlo — A Revision of 



Damalis, Fabr. ; Acnephalum, Codula, Microstylmn, Bra- 

 chyrrhopola, Macquart ; Cabasa, Phellus, Walker ; Batliy- 

 poyoti, Saropogon, Stenopuyon, Ht'idiopoyon, Loew ; Chryso- 

 poyon, Roder ; Deromyia, Pliilippi. New genera added : 

 jSeocyrtopoyon, Neosarupoyon^ Fsilozona, Rachlopoyou. Of 

 doubtful occurreuce the following : Ancylorrhynclius, Latr. ; 

 kielidopoyun, Bezzi. 



■j^t^^uKf^ Table of Genera. ^ -]j^d^'Tji i^^ r^e. i^i. 



rj^wH^m\^ Fore tibife with a curved spiue 2. I ^ ^^p-*^ 



^\'^7tu:^£,M, ^^ulr i'01'6 tibiae with uo such curved spine .... 10. 

 ^—^•^-^-p- i - 2, Third joint of autenntne usually with no very 



^ UA-thrh^cm '^d / distinct terminal style 3. 



-pT^ ^^ - Third joint of auteunge vi^ith a distinct ter- 



''^']/hJ^^^ ' DJiual style 9. 



-^ JHS'-- g_ Thorax humpbacked, bright-coloured. All 



posterior cells open. Small species .... Cahasa, Wlk. 

 Thorax not humpbacked or bright-coloured. 



Posterior cells not always open 4. 



4. Thorax armed with a stout spine on each 



side C'hrysopoyon, Roder. 



Thorax not armed with a stout spine on 



each side 5. 



6. Abdomen club-shaped, narrower at base . . Braclii/n-hopala, Macq. 

 Abdomen not club-shaped nor narrower 

 at base , 6. 



6. Face very convex JSeucyrtopogon, g. n. 



Face not very convex 7. 



7. Antennae notched at apex of third joint .. Rachiojmyon, g. n. 

 Antennae not notched at apex of third joint. 8. 



8. Fourth posterior cell narrowed at border or 



open Ne<isuropogu77, g. n. 



Fourth posterior cell closed far from 



border JJeromyia, Pliilippi. 



9. Fourth posterior cell open or closed. Small 



species Saropoyon, Loew. 



10. No pulvilli to tarsi. Hairy species, bee-like 



in appearance Acnephalum, Macq. 



Pulvilli present. Species not hairy or bee- 

 like in appearance 11. 



11. Second posterior cell encroaching on the 



first cell Microstyluni, Macq. 



Second posterior cell not encroaching on 

 the first cell 12. 



12. Very large species. Middle tibiae with a 



stout prolongation P//e//ws,'Walk. 



Not very large species. Middle tibiae 

 simple 1.3. 



13. Abdomen club-shaped. Moustache con- 



fined to oral opening Codida, Macq. 



Abdomen not club-shaped. Moustache 

 not always confined to oral opening .... 14. 



14. Moustache reaching antennae. Face with 



a tubercle 15. 



Moustache not reaching antennje. Face 

 with \iu tubercle 16. 



