34 



farther down on each side is another very faint line 

 likely to be overlooked. On the middle of the adbomen 

 beneath are several small black dots. Large examples 

 have a wing expanse of about 3 inches. The body 

 measures about 1.25 inch in length. 



LIFE-HISTORY. 



The history of the worm for this region is as follows : 

 The worms appear suddenly about the middle of June? 

 hatching from eggs laid in a cluster on a leaf. On the 

 28th of June in 1893 those observed were nearly ready 

 to leave the trees and all had done so and had changed 

 to pupse in the ground before July 10. The adults of 

 this brood began to appear above ground July 17 and 

 all were out before July 22, at which date one of the fe- 

 males in a box at the Station began to lay eggs for a 

 second brood. On August 18, 1893, nearly grown worms 

 of the second brood were obtained from trees at Lexing- 

 tion, and by August 21 these had gone into the ground 

 for pupation. Four adult moths were obtained from 

 these on September 18, '93. 



Now either these moths hibernate and thus carry the 

 species through the winter, or else they lay eggs for a 

 third brood which passes the winter in the ground as 

 pupae. The latter method of hibernating seems the 

 most probable in view of what we know of related worms, 

 but my observations will not permit me to decide upon 

 this point. 



REMEDIAL TREATMENT. 



Practically the question as to how these insects pass 

 the winter is not of as much importance as in the case of 

 some other injurious species. Spraying the leaves of in- 

 fested trees with some of the well-known poisons men- 

 tioned above can be counted on as a safe remedy. 



I found last summer that it was possible in the case of 



