BY FREDERICK A. A. SKUSE. 291 



b. Some or all the femora spinose beneath. Falpomyiat 



Meg. 



1. Ungues not denticulated. 



a. Ungues of equal length in both sexes. 



* Plantse hairy. 



** Plantse spinulose. 

 j3. One of the ungues longer than the other in Q. 

 Plantae hairy. 



2. Ungues (in 9 only ^) with a tooth on inner side, 

 a. Ungues of equal length in both sexes. 



* Plantse hairy. 



** Plantse spinulose. Sphceromias, Steph.; Curt. 



c. Hind femora incrassated, spinose beneath. 



Ungues not denticulated. 



One of the ungues longer than the other in 9. Serro- 

 myia, Meg. ; Prionomyia^ Steph. 



SECOND DIVISION. 



Marginal Cross-vein Wanting. 



Wings naked. Second longitudinal vein joining costa between 

 middle of anterior border and apex of wing. 



A. All the femora unarmed. 



1. Ungues not denticulated. 



2. Ungues with a tooth on inner side. 



3. Ungues with a side-claw standing outwards. Plantse 



spinulose. 



B. Some or all femora spinose beneath. 



1. Ungues not denticulated. 



2. Ungues with a tooth on inner side in 5. 



