HYMENOPTERA. 245 



Cephites. Larva elongate, with its feet obsolete or rudi- 

 mental. Inhabits and feeds on the stalks of com and the 

 buds of fruit-trees. Pupa changes within the stalk. Imago 

 with antenna many jointed, long, filiform, slightly incras- 

 sated extenaally ; mandibles short, broad, trifid ; 7naxill(B 

 with the blade distinct and acute, the galea elongate, and 

 separated from the maxilla by a distinct line, the feeler 

 long and six-jointed; labium with its four parts perfectly 

 developed, the feeler-bearer elongate, and notched at the 

 apex, the ligula produced and trilobed, and the feeler four- 

 jointed ; ocelli three ; head rather square, broader than the 

 following segments ; prothorax fully developed, cylindrical, 

 quite detached fi'om the mesotliorax ; podeon fully deve- 

 loped, divided on the back longitudinally ; body elongate ; 

 legs elongate ; flight easy and graceful, in the sunshine. 

 Cephiis, which settles in abundance on composite flowers 

 by the road-side, and in meadows on Ranunculi : Janus, 

 Phyllcecus, which settles on the leaves of trees in woods, 

 is represented below. 



