258 Ayinals Entomological Society of America [Vol. IX, 



Apantesis arge Dm. [G. T. Hosenfelt]. 



This species was noticed only in the latter part of August 

 and early September. They seemed to go to rest for the night 

 on the ground or on the first convenient stem at hand from six 

 inches to three feet above the ground. Sometimes several 

 occurred near to each other, but seldom more than one on a 

 stem. At that time of year they usually rested, head up, on 

 dead or dried stems. 



Utetheisa bella Linn. [G. T. Hosenfelt]. 



This red mottled moth shows the same behavior night and 

 day; when picked up it slowly opens its wings and so remains 

 motionless. 



* BEETLES 



Diabrotica 12-punctata. 



Like the striped pumpkin beetle, these spotted cucumber 

 beetles apparently behave at night very nearly the same as 

 during the day. The two insects are often associated together ; 

 where you find one you have not far to seek for the other. 



On June 10 at 9:30 p. m. several were at rest on the blossoms 

 of the elderberry. I could not discern whether or not they were 

 asleep. At the same hour on August 30 they certainly were 

 wide awake, walking about on sunflowers and feeding on the 

 petals. On August 15 at the same hour and at 6 o'clock the 

 next morning they were in the flowers of the jimson-weed. 

 When the cucumber blossoms were examined at 5:50 a. m. none 

 were found in the newly opened blossoms, but in the old flowers 

 of the day before which had already closed there were several 

 of these spotted beetles. This shows that at least they are not 

 active enough at that hour to migrate speedily. 



On September 14 at 8:30 p. m. two spotted beetles were to 

 all appearances asleep .on the radial florets of a sunflower, but 

 when the carbide light was thrown on them they gave a slight 

 response in the form of movement of the antennae. 



From these observations I assume that this species has no 

 regular hours or conditions to sleep. 



