CARPBNTBR-WASPS. 



A B represent sections of old wooden posts, with the cells of 

 the carpenterwa»p. In fig. A the young grubs are shewn feeding 

 on the insects placed there for their support by the parent wnap. 

 The cells in tig. B contain eocnnns. C, carpenter-wasp, natural 

 site. D, cocoon of a oarpenter-wasp, composed of sawdust and 

 wings of insects. 



grub is about to go into the pupa state, it spins a 

 case (a cocoon), into which it interweaves the wings 

 of the flies whose bodies it has previously devoured. 

 In other species, the gnawings of the wood are em- 

 ployed in a similar manner. 



Upholsterer- Bees. 

 In another part of this volume we shall see how 

 certain caterpillars construct abodes for themselves, 

 by cutting off portions of the leaves or bark of 

 plants, and uniting them by means of silk into a 

 uniform and compact texture ; but this scarcely ap- 

 pears so wonderful as the prospective labours of 

 some species of bees for the lodgment of their pro- 

 geny. We allude to the solitary bees, known by the 

 name of the leaf-cutting bees, but which may be de- 

 nominated more generally vphokterer-becs, as there 

 are some of them which use other materials beside 

 leaves. 



