FAMILY BOMBYLIID.K THE BEE FLIES 193 



in the killing bottle and they must never be placed with other insects 

 else they be ruined for all practical purposes. Without the hairs they 

 are of no value and cannot be properly identified. 



The larv« are parasitic upon bees, wasps, grasshoppers and certain 

 Lepidoptera, but not a great deal is known about most of the genera. 



KEY TO GENERA 



1. The second vein arises transversely opposite or almost opposite the 



anterior crossvein 2 



The second vein arises at an angle at a considerable distance from the 

 anterior crossvein 19 



2. Antennal style separated from the third segment by a distinct suture, 



sometimes short 3 



Antennal style not separated from the third segment 7 



3. Antennal style terminating in a pencil of hairs (5, 54, 64). 



* Anthrax Scopoli 

 Antennal style not terminating in a pencil cf hairs 4 



4. Pulvilli vestigial or absent 5 



Pulvilli large (49, 52) Aldrichia Coquillett 



5. Four submarginal cells (2) Hyperalonia Rondani 



Three submarginal cells 6 



6. Proboscis projecting more than the length of the labellse beyond the 



anterior oral margin (3) t Litorhynchus Macquart 



Proboscis projecting less than the length of the labellse (4, 7, 8, 57). 



t Exoprosopa Macquart 



7. Anal cell open; eyes of d not contiguous 8 



Anal ceil closed; eyes of o' contiguous at the vertex. 



Astrophanes Osten Sacken 



8. Anal cell widest at the middle 9 



Anal cell widest at the wing margin (36) Mancia Coquillett 



9. Second vein strongly contorted and r ' shaped at the apex 10 



Second vein not strongly contorted 11 



10. Three submarginal cells Dipalta Osten Sacken 



Two submarginal cells Neodiplocampta, n. g. 



11. Two submarginal cells 13 



Three submarginal cells 12 



12. Proboscis extending but little beyond the oral opening (6) ^'ilIa Lioy 



Proboscis extending far beyond the anterior oral margin (34, 51). 



Stonyx Osten Sacken 



J 3. Face wholly without scales; labellse long and narrow. 



Poecilanthrax Osten Sacken 

 Face with scales 14 



14. Anterior tibise with spicules in regular rows 16 



Anterior tibiae with at most two or three very small spicules 15 



* Curran. 1927, Can. Ert. lix, p. 84 (partial key). 

 t Curran, 1930, Amer. Mus. Novit. No. 415, p. 2. 



