212 GRAMMAR OF ENTOMOLOGY. 



ligula short and bilobed, its feelers generally four- 

 jointed; ocelli three; fore and hind wings with 

 numerous nervures ; podeon always slender, 

 seldom or never elongate; oviduct generally 

 defended by a setaceous appendage on each side, 

 thus appearing to be triple: varies greatly in 

 length. Inhabits vegetables of all kinds through- 

 out the summer. Ichneumon, Anomalon, Ophion, 

 Banchus, Peltastes, Alomya, Cryptus, Pimpla, 

 Xylonomus. 



727. Sirecites {Sirecites). Larva cylindrical, 

 with six rudimental articulate legs ; head corne- 

 ous ; paratelum incrassated ; inhabits timber. 

 Pupa changes in the same situation. Imago 

 with antennae filiform, attenuated exteriorly, com- 

 posed of fifteen to thirty joints, the number vary- 

 ing in different individuals of the same sex and 

 species ; mandibles strong, trifid ; maxillae rather 

 elongate, soft, flexible, obtuse, their feelers very 

 minute, exarticulate ; labium somewhat triangular ; 

 ligula short, entire, dilated ; feelers three-jointed, 

 the terminal joint long and incrassated; ocelli 

 three ; wings ample with many strong nervures ; 

 prothorax fully developed, broader than the head, 

 its anterior and posterior margins concave ; the 

 following segments fully and equally developed ; 

 ovipositor exserted, composed of three setse. 

 Inhabits fir plantations. Sirex. 



728. Xyphidriites (Xyphidriites). Larva per- 

 fectly without feet. Inhabits and lives on the 



