Family 19. ACROCERID^. Sill all -headed HuinpbacJ: Flies. Their hirv:t are 

 parasites in spitiers or their cocoons, and live in tiielr belhes. 



ACROCERA. Tophorncd Fiv. 



I. A. fasciata. ig in,- black; body yellow, with three lilack bands; feeler 

 on the top of the head. 



/'fA Xemestrinid:e are very rare bee-like flies with Ion',; trunks. 



Family 20. BOnBYLIAD/E. Bee Flies. Hover Flies. They feed on the honev of flowers, are very 

 swift rtyer>. and stop sudtlenly in the air. Their larv;B lives as parasites on other insects. 



ANTHRAX. Mourning Hover Fly. 



1. A. si/nson. 58 in. ; black ; chest grayish red ; body silver spottcil ; wing 



clear, with brown spots. 



2. A. plitto. y2 in.; black; Ijody with internnpted white Inuul ; wing 



witli black lilotciies at base and point. 



3. A. //a/cyoii. 'j in. ; black, with \ellow hair; wing brown, with a spot 



111 the iiiitkile. the point anil edge cells clear, 

 q. .1. tcgmhiipeiniis. y^ in.; black, with yellow hair ; wing dark brown ; 



legs reiliiish. 

 5. A. ocdipHS. -^^ in.; black; hotly with white spots; wing clear, with 



black blotches and spots. 



(36) 



