486 DESCRIPTION OF THE MUSEUM. 



frames. In the first we see the honey-comb of 

 a bee of Bengal (n° ] ), the nest of the vespa crabro 

 of Cayenne (n os 2 and 3), and several other nests 

 belonging to European species (n os 4, 5, 6, 7). 

 The second frame is devoted to our domestic 

 bee. In the upper part of the third case are 

 several nests of earth, bored with linear holes, 

 which are the work either of the sphex spirifeoc 

 or of the apis lapidaria, Lin. Below these are 

 the galls and cocoons of different species of ich- 

 neumon and cimbex, and also a soft substance 

 or down which is gathered by the formica fun- 

 gosa of Cayenne. The sphex compress a (n° 5i), 

 known in the isle of France by the name of 

 blue-fly, wages a continual war with the cock- 

 roaches. 



The insects which we have hitherto noticed 

 are all furnished with jaws ; in those which 

 follow the mouth is simply a tube of varied 

 structure, calculated to suck or pump liquid sub- 

 stances. "We shall begin with those which have 

 been most favoured by nature, and which are 

 decked with her richest ornaments, the butter- 

 flies, sphinxes and moths, collectively called lepi- 

 doptera by naturalists. Those which fly by day, 

 and whose antennae increase towards the point, 

 are called butterflies ; those which fly by night, 

 and whose antennae diminish gradually from the 



