FAMILY LAUXANIID.E 321 



23. Intra-alar bristle present 24 



Intra-alar bristle absent 26 



24. Scutellum bare above 2.5 



Scutellum setulose above (10) Deutominettia Hendel 



25. Frontal bristles arising from tubercles (1, 32) Chaetocoelia Giglio-Tos 



Frontal bristles not arising from tubercles (14) Minettia Desvoidy 



26. Second vein undulated Trypetisoma Malloch 



Second vein not undulate 27 



27. The tiny black costal setulaj continued to the apex of the third vein (4). 



Homoneura Wulp 

 The black setulae extend to only a little beyond the apex of the second 

 vein, never to the third (15, 39) ''Sapromyza Fallen 



* Hendel has recoRnized two SGRiegates of this fceiius. Lycia Desvoidy and Cneinacantha 

 Macquait, both of which have four dorsocential bristles. The former has the acrostical hairs 

 two or four rowed and rather long while the latter has them six rowed and very short. 



