330 



TRANSFORMATIONS OF INSECTS. 



provide another coat The perfect insects are represented upon 

 the stem of the lily. 



The larva of another beetle, which is closely allied to the species 

 just described, has almost as curious a protection. It may be seen 

 on artichokes and large thistles. It is broad, flat, and has long, 

 pointed, or spiny hairs fixed to its sides, and a fork-shaped 



TJIE METAMORPHOSES OF Una populi. 



appendage, which is attached to the end of the body and curved 

 forwards above the insect. The vent is situated at the base of 

 this appendage, and the matters coming from it stick on to the 

 fork which is hoisted up above the body with the lump of dirt 

 upon it like a parasol. 



The poplar trees are frequently much damaged by some 

 species of the genus Una. The adult beetle is of a green 

 bronze colour, and has red elytra, but the larva is yellow and is 



