CLASSIFICATION OF INSECTS. 203 



cocoon, which the hirva spins in its cell. Imago 

 with antennae composed of twelve joints in the 

 female, thirteen in the male, slightly elbowed at 

 the second joint ; eyes somewhat reniform, the 

 indented portions facing each other ; ocelli three ; 

 upper wings folded longitudinally ; podeon slen- 

 der, but short ; eighth segment largest, both as to 

 length and breadth. Live commonly in societies 

 composed of three kinds of individuals, males, 

 females, and abortive females ; inhabit all climates 

 and all situations. Vespa, Eumenes, Odynerus, 

 Epipone. 



712. Masarites (Masarites). Larva and pupa 

 as in the Vespites. Imago with the antennae 

 composed of thirteen joints, of which the five 

 terminal ones are closely united and form a club ; 

 wings as in the Vespites. No British genus. 



713. Carpenter-bees (Osmiites). Larva an 

 obese inactive maggot, deposited as an egg in 

 the midst of a semi-fluid substance, composed of 

 honey and pollen, collected by its parent, and 

 stored in cells which are constructed for the 

 purpose, mostly in timber which is going to 

 decay. Imago with antennae twelve-jointed in 

 the female, thirtcen-jointed in the male ; they 

 are slightly elbowed at the second joint, which 

 is much longer than the others ; the blade of 

 the maxillae is elongate and somewhat falcate ; 

 the maxillary feelers are minute, and generally 

 composed of six indistinct joints ; the labium 



