COCOONS OF SAW-FLIES. 



301 



and is given to the insects because their bodies are thickly 

 covered with hair, instead of being nearly naked like those of 

 the preceding genus. The whole appearance of the body is so 

 bee-like that most persons who see the insect imagine that it 

 belongs to the bees and not to the Saw-flies. It can, however, 



y^,/_ 



1. Cimbex lutea. 2. Tenthredo zonatus. 3. Cryptns pallipes. 4. Lophyrus pini. 

 a. Cimbex larva. b. Lophyrus larva, c. Lophyrus, cocoon. d. Do, antenna, male, 

 e. Do. antenna, female. 



be distinguished by the shape of the antennae, which are ter- 

 minated by round knobs composed of three joints fused to- 

 gether. The rest of , the organ is composed of five joints. 

 The colour of the insect is dark brown, and the wings are 

 darkish, with a smoky streak along their lower edges. 



The insect is common upon whitethorn, and may be seen in all 

 these stages. The larva, like that of the last-mentioned Saw- 

 fly, prefers the upper surface of leaves, and coils itself up in a 



