114 POPULAR ENTOMOLOGY. 



elegance of motion which cannot fail to attract attention. 

 The larva inhabits water, remaining concealed in the day- 

 time under stones, or in holes made in the clayey soil ; it is 

 of course then destitute of wings ; the antennse are long ; 

 the mouth provided with a pair of horny appendages, like 

 jaws ; and the body has a series of leaf-like plates on each 

 side, with gills, or branchiae, at their base ; the extremity 

 of the body is furnished with short filaments. The pupa 

 differs only in having the rudiments of wings. 



HYMENOPTERA. ANDRENIDJE. 



ANDRENA. 



Generic Distinctions. Antenna, third joint longer than the others ; 

 maxilla long and bent ; labrum, or Up, short ; proboscis downy and 

 thick ; hind legs hairy. 



AXDRENA NIGRO-JENEA. (Plate IV.) This species of Bee 

 has the body black, and densely clothed with tawny-coloured 

 hairs ; the antennae are black, as is the thorax, which is also 

 covered with reddish hair ; the wings are transparent and 

 slightly iridescent ; the legs are black and hairy, the hinder 

 pair being thickly clothed with long white hair. 



