Revision of the Bombylid Genus Aphoebantus. 255 



3. Proboscis never projecting more than the length of its labellae 



beyond the oral margin 4 



Proboscis projecting half its length beyond the oral margin ; 

 abdomen with black tomentum, pile of face yellow and 

 white litus Coq. 



4. Front with sub-erect pile, its tomentum when present, sparse. 5 

 Front destitute of sub-erect pile, densely white tomentose, pile 



and tomentum of face white, styliform portion of the third 

 antennal joint two-thirds as long as the thickened basal 

 part pavidus Coq. 



5. Pile of face white or yellowish white 9 



Pile of face wholly golden yellow 6 



Pile of face black, that below sometimes reddish 7 



6. Styliform portion of the third antennal joint equal in length 



to the thickened basal part, scutellum and hind femora pro- 

 vided with bristles capax n. sp. 



Styliform portion of the third antennal joint less than one- 

 third the length of the thickened basal part rattus O. S. 



7. Abdomen with crossbands of black tomentum 8 



Abdomen destitute of crossbands of black tomentum; face 



sparse tomentose, hind femora with a few bristles but no 

 long hairs below tardus n. sp. 



8. Hind femora with long hairs besides the bristles below, face 



sparse yellowish tomentose desertus n. sp. 



Hind femora with bristles but no long hairs below, face desti- 

 tute of tomentum, abdomen with crossbands of black to- 

 mentum scriptus n. sp. 



9. Hind femora with bristles on the lower surface 21 



Hind femora with long hairs but no bristles on the under 



surface 10 



10. Abdomen destitute of black tomentum 11 



Abdomen with crossbands of black tomentum, styliform por- 

 tion of the third antennal joint nearly twice as long as the 



thickened basal part carbonarius O. S. 



11. Styliform portion of the third antennal joint at least two- 



thirds as long as the thickened basal part 18 



Styliform portion less than one-third as long as the thick- 

 ened basal part ...rattus O. S. 



12. Styliform portion of the third antennal joint equal in length 



to the thickened basal part 14 



Styliform portion twice as long as the thickened basal part ; 

 dorsum of abdomen rather densely clothed with long 

 white or yellowish white pile 22 



13. Abdomen with a white tomentose dorsal vittae, upper part 



of the face bare, pile of front disposed in two stripes 



EUCESSIA RUBENS Coq. 



Abdomen destitute of a white tomentose dorsal vittae, upper 

 part of the face pilose, pile of front not disposed in stripes.. 

 ... , varius n. sp. 



14. Abdomen with crossbands of black tomentum, these some- 



times interrupted ...15 



Abdomen destitute of black tomentum .........16 



