ATTACUS ANGULIFERA 245 



although one collector has stated that he finds such 

 cocoons. 



Out of doors angulifera cocoons are found among 

 the dry leaves under tulip-trees, having fallen with 

 the leaves spun about them. The cocoon is ovoid, 

 about an inch and a half long, dark tan-colored, grow- 

 ing grayer with exposure to the weather. 



The pupa is similar to that of promethea, and its sex 

 may be told by the antennae-covers, those of the male 

 being the broader. 



The moths emerged the following spring, between 

 one and three in the afternoon. 



Angulifera is more common in the Middle States 

 than in New England, but is nowhere as common as 

 promethea. 



