n8 ENTOMOLOGICAL NEWS. [March, '08 



twigs while two half grown specimens were found on the bark 

 at the base of the tree in the shadow of some drooping rasp- 

 berry leaves. On the underside of a dead branch of some- 

 what greater diameter than a lead pencil, two well grown larvae 

 were found. 



After the tree had apparently been robbed of all its caterpil- 

 lars and several days had passed without finding any, in the 

 folds of a muslin bag tied on a living branch, three mature 

 larvae were discovered. 



A trick was then tried that had proved successful in the 

 search for Catocala piatri.v larvae. Sticks or dead branches were 

 leaned against the tree and, in the morning, several larvae were 

 found on the under side of the sticks. 



I am sure that when no shelter is to be found on the tree, 

 the larvae, after the night's feeding, leave the tree and hide 

 beneath leaves or find other retreats. 



I found this so in C. piatri.v by scattering pasteboard and 

 folds of paper beneath walnut bushes and in the morning se- 

 curing the larvse beneath the boards or in the folds of the 

 paper. 



Small larvae of all species of Catocalae, perhaps, are some- 

 times found in the bark grooves or cracks and, perhaps, al- 

 ways with the head down and in most cases within three or 

 four feet of the ground. We have never climbed for any but 

 hickory species and then only when the rough loose bark ex- 

 tended beyond reach. 



I recall a walnut bush that grew near the edge of a low bank 

 and the water had worn a hole down among the roots. I thrust 

 my hand down the hole and felt among the rootlets till I found 

 a fine large C. piatrLv larva. 



On the underside of a willow that had fallen over, a very 

 large cam '"worm" was discovered near the ground. 



Beneath the loose bark of shag-bark hickory, larvae of a 

 number of species of Catocala can be easily found and usually 

 near the ground, but sometimes higher if the loose bark ex- 

 tends upward. 



On hickory we have taken larvoe of C. residua, C. habilis, 



