CORN SAWFLY. 



157 



on endeavouring to make the caterpillars loose their 

 hold, which we see amounts, with a large proportion, 

 to the same thing as killing them outright. 



As in the case of Turnip Flea Beetle, various kinds 

 of dressings may he of use, such as lime, &c., if 

 applied so that they stick to the insect and leafage ; 

 and also all measures to keep the earth moist enough 

 to run on a good crop, and keep the Sawfly from en- 



FiG. 121. — 1-5, Corn Sawfly and grub, natural size and magnified 

 6 and 7, Parasite Ichneumon Fly, magnified and nat. size. 



joyment of the full light, heat, and drought, in which 

 it delights, will be of service. 



There is one other kind to be noticed, because it 

 differs greatly from those just named in its habits. It 

 is the Corn Sawfly {Cephus pyginceus) y which feeds more 

 especially within the "Wheat stalks ; and its presence 

 may be partially known by the blasted ear. 



This whitish maggot has only the rudiments of the 

 three pairs of claw-feet; and when its work of mischief 



