ORDER DJPTKRA. 



127 



Family Ephydrinidae. n\<\. with ii" distinct furrows for 



the reception of the antennae, and without vibrissa?, tho 

 quentlj beset with bairs or l>ri-i !«■>■, clypeus verj much developed; 

 opening <>f the mouth large; proboscis thickened, with :t swollen 



Fio. 1-18.— A, larva ..f Ephydra californica: a, dorsal, '■. under, <•. side, » 

 the pupa, a, Ephydra halophUa ; > , it^ puj 



chin. Venation of the wings incomplete; the auxiliary vein <li<- 

 tincl only al its base; the foremost of the two small basal ■ 

 reunited with the discal cell. Middle tibiae with spurs. The >iu- 



l-'ii;. 1 1 1 .'. Piophila caaei, parent of the chees 



gular larvae are provided with a long caudal res B. 



halophUa Pack, lives in the brine of the Eq "■' Works, 



