INSECTS rNFESTINCr THE GRAPE. 



203 



Fig. 189. 



CHAPTER CXIX. 



The Snowy Tree-erieket. 



( (IJcan th «.s niceu><. — Harris. ) 



Order, Orthoptera; Family, (iRYLi.iD.E. 



[Puncturing the tender twigs of the grapevine, apple and 

 peach trees, raspberry and blackberry bushes, and depositing 

 her eggs therein; a greenish- white cricket.] 



Fig. 188.— Snowy Tree-cricket, 



^^' ■ female — color, greenish white. 



In depositing her eggs, the 



female cricket (Fig. 188) lirst 



uses her jaws for the purpose 



of slightly tearing away the outer bark ; the ovii)ositor is next 



inserted into the twig, and an egg thrust into tlie puncture 



thus made. 



Fig. 189. — Eggs of Snowy Tree-cricket; 

 a, the egg punctures in a twig ; h, the eggs 

 exposed — color, pale yelloAV ; r, an egg 

 highly magnified ; d, upper end of the 

 same, still more highly magnified. 



These eggs (Fig. 189) are usually placed 

 diagonally across the central pith. In this 

 way the female proceeds until her stock of 

 over two hundred eggs is exhausted. These 

 punctures are frequently made w^ithin four 

 lines of each other, and extend in an irregu- 

 lar row a distance of one foot and six lines 

 or over. — Riley. 



Fig. 190. — Snowy Tree- 

 cricket, male — color, green- 

 ish white. 



When first hatched, the 

 young cricket feeds upon 

 plant-lice, eggs, etc., and 

 has even been known to 

 attack and devour one of 

 its own kindred. After acquiring wings they 



Fiff. 190. 



