214 



INSECTS INJURIOUS TO THE CHERRY. 



enough to be beyond the reach of frost, and there remains 

 until the following spring. 



Fig. 220. Fia 221. 



AVhen ready for its next change, the larva 

 forms a cavity in the ground, by turning itself 

 round and round and pressing the eartli until 

 it moulds a cell of suitable form and size, 

 which it lines with a glutinous secretion, so 

 that the cell may better retain its form, and 

 within this it changes at first to a pupa 

 (shown at 1 Fig. 219), and finally produces 

 the perfect beetle. 



Remedies. — It is very difficult to reach the 

 larvae under ground with any remedy other 

 than digging for them and destroying them. 

 Hogs are very fond of them, and, when turned 

 into places where the grubs are abundant, 

 will root up the ground and devour them in 

 immense quantities. They are likewise eaten 

 by domestic fowls and insectivorous birds; 

 crows especially are so partial to them that 

 they will often be seen following the plough, 

 so as to pick out these choice morsels from 

 the freshly-turned furrow. An insect para- 

 site, the unadorned Tiphia, Tiphia inornata 

 Say, is also actively engaged in destroying the 

 white grub. Frequently, when digging the 

 ground, a pale-brown, egg-shaped cocoon is 

 turned up (see c, Fig. 220) ; within this, when fresh, will be 

 found a whitish grub, represented at 6, which, during its 



^^JCCv' 



