22 



BRITISH BEES. 



ries of its cell. Its small head, which is smooth above, 

 has a little projecting horn on each side representing 

 the future antennse. The small lateral jaws articulate 

 beneath a narrow labrum or lip, which folds down over 

 them. To prove that the food provided requires still 

 further comminution, these jaws are incessantly masti- 

 cating it. The form of these jaws approximates to that 

 of the insect which it will produce, being toothed and 

 broad at the apex in the artisan and wood-boring bees, 

 and simple in those which burrow in softer substances. 

 On each side beneath these jaws there is an appendage, 

 rather plump, having a setiform process at its extremity, 

 and beneath these, in the centre, we observe a fleshy 

 protuberance which, at its tip, has a smaller perforated 

 process that emits the viscid liquid with which the grub 

 spins its cocoon, and which immediately hardens to the 

 consistency of silk. 



Having constructed its cocoon, where the species does 

 so, for it is not incidental to all the genera, and 

 shrunk to its most compact dimensions, the larva be- 

 comes transformed into 



The Pupa. This is semi-transparent at first, and 

 a I c there may be seen 



through the thin 

 pellicle, which inva- 

 riably clothes every 

 portion separately, 

 of the body the ri- 

 pening bee, which 

 lies, like a mummy, 

 with its wings and 

 legs folded lengthwise along its breast. The parts gra- 

 dually assume consistency, and the natural colours and 



Fig. 3. a, the pupa, seen beneath ; b, 

 above ; c,seen laterally. 



