NEW YORK STATE MUSEUM 



results were greatly in favor of protecting our indigenous forms. In the 

 neighboring orchards it w'as evident that cankerworms and tent caterpillars 

 were very numerous, but in the orchard in question, the trees were seriously 

 injured in only one or two instances, though no attempt was made to con- 

 trol the insects by spraying or other artificial means. The common toad 

 has been recorded by Mr Kirkland as feeding on this species, though from 

 this batrachian being confined to the ground and presumably occurring 

 more abundantly in cultivated fields, it is hardly probable that as a rule it 

 devours many caterpillars. 



Parasites. Relatively few true parasites have been bred from this 

 insect. Dr Riley records the rearing of L i m n e r i a f u g i t i v a Say, and 



Fig. X5 Pimpla conquisitor: a = larva ; h = head of same ; c = pupa ; 

 ^—adull female — all enlarged. Lines beside figures represent natural 

 size. (After Howard, V . S. Dep't .■igric. Div. Ent. Tech. Ser. 5. 1897I 



Mr Saunders states that Pimpla pedalis Cress preys on this species. 

 Pimpla conquisitor Say was reared from several pupae collected in 

 Delaware county in 1897, the large proportion of the cocoons parasitized 

 indicated that it was very valuable in controlling this caterpillar. This 

 species was extensively parasitized about Albany in 1900, Pimpla 

 inquisitor Say, being the most efficient in many localities. T h e r o n i a 



