128 



NEW YORK STATE MUSEUM 



boucheanus Ratz., a common hyptrparasite, was also reared from this 

 insect by Dr Lintncr. 



Remedies. The spread of this insect is dependent almost wholly on 

 the wandering of the larvae, wliich must be very limited on account of their 

 cumbersome load. This, in connection w ilh the eggs being deposited in a 

 stout, conspicuous case, whicli remains on the trees all winter and is easily 

 removed, renders the control of the insect by collecting the bags at this 

 time and burning them, comparatively easy. This caterpillar is a leaf 

 feeder and yields readily to arsenical poisons. Evergreens are quite suscep- 

 tible to arsenic and therefore the arsenate of lead has been recommended. 



Fig. 19 C h a 1 c i s o V .1 t .1: rt^pup.-!; b -parasili/cd pupa of Heitierocampa: 

 c adult; rf— outline of same from side; ^—pupal exuviae — enlarged.] 

 (After Howard. U. S. Dcp't Agric. Div. Ent. Tech. Ser. 5. 1897) 



Dr Smith advises the use of at least 15 ounces of llie arsenate to 40 gal- 

 lons of water for the purpose of securing the promj)! destruction of the 



pests. 



Bibliography 



1882 Lintner, J. A. Ins. .\. V. ist Rcp't, \>. 81-87 



1887 Riley, C. V. U. S. Dep't .Vgric. Div. Km. I5ul. 10, p. 22-28 



1899 Felt, E. P. Fish, Game and For. Com. 5th Rcp't, p. 359-63 



