2980 



THE JOINTED ANIMALS 



forms a cell of earth grains, in which it passes the winter. The majority of the 

 members of the family belong to the typical genus Tenthredo, and are elegant, ac- 

 tive insects, which alone of all the sawflies exhibit a carnivorous habit. It is not 



i. PINE SAWFLY, larvae ou pine needles, and also papse cases shut and open ; 2. BROAD-BOUIED SAWFLY, 



with larvae and nest. 

 (All natural size.) 



easy to distinguish the males from the females, though the difference in the color is 

 of some assistance. It has been noticed, for instance, that. in cases where the ab- 





i. TURNIP SAWFLY AND LARV.S: ; 2. ROSE SAWFLY, male: 3 SAWFLY, female, and with larvae. 



(Natural size.) 



domen of the female is entirely black, that of the male is black and red. Of the 

 green sawfly (T. scalaris}, the larva is common on the willow, and is pale green 



