THE PLUM CDRCULIO 



67 



These motlis live for about two v.-eeks. They deposit their 

 eggs in flat masses, presumably upon the bark of the cherry 

 bushes, although this has not been definitely ascertained. A¥e 

 have seen no indication of a second brood, which would indi- 

 cate that the eggs remain unhatched until tlie following spring. 



There are 

 many parasites 

 that prey upon 

 these larvas, and 

 it is probable 

 that these ene- 

 mies will soon so 

 reduce their 

 n umbers that 

 they will not be 

 noticed. Of 

 course the Tent- 

 makers do little 

 real damage be- 

 cause their food- 

 plant has so little 

 economic impor- 

 tance. The cut- 

 ting and burning 

 of the tents anv 

 time before the 

 m 1 h s emerge 

 Avill destroy the 

 insects. 



Early in June 

 Mr. W. II. Rob- 

 erts of ^lanches- 

 ter sent some 

 small apples 

 which had been bitten ])y an unknown insect. Some of the 

 marks upon the fruit were the characteristic crescent cuts of 

 the Plum Cuhculio {Conoirachehis nemiphar), so that I at 

 once concluded this insect to be the cause of the damage. 



Fig. 18. Moths of the Cherry Tent-iiiakt'f on ttiit. 



