314 



THE GYPSY MOTH. 



P.M. 



9.10. Feeding. It began at the base of the leaf, clasping the* 

 petiole and twig with feet and prolegs, eating the base 

 of the leaf close to the midrib, then, raising its head, 

 worked out toward the margin of the leaf, making a 

 crescent-shaped cut, then started from the midrib 

 again. 



9.20. Feeding. 



9.30. Resting, after ha^^ng eaten steadily twenty-five minutes. 

 9.40. Feeding (began at 9.31). The caterpillar then fed 



steadily until 11 p.m. 

 11.00. Resting a few seconds, after feeding one and one-half 

 hours. 



A.M. 



12.10. Feeding. Has fed continuously since 11.10; has eaten 

 the whole of one side of a leaf and is now working 

 upon the tip. 



12.20. Feeding upon the tip of the remaining half of the leaf. 



It begins at the midrib, actually eating it, then takes 

 a strip square across the leaf to the margin, then 

 begins eating again at the midrib. Sometimes it 

 reverses this movement, and feeds from the margin 

 to the midrib. 



12.30. Feeding. 



12.40. Feeding. 



12.50. Left the remains of its leaf, having eaten nearly all 

 through it, and started at once upon the second. The 

 caterpillar then fed without interruption until 3.20 



A.M. 



3.20. Stopped feeding, crawled out to the end of the twig, 



turned back and crawled down the main branch. 

 3.30. Slowly descending (daylight approaching). 

 3.40. Descending. 



3.50. Descending, about four feet above the burlap. 

 4.00. Descending. 



4.10. Crossed the burlap, crawled under it, and at once became 

 quiet. 



Weather during the night, fair, cool and starlight. 



Summary. 



Detailed observations made on twenty-five caterpillars 

 may be summarized as follows : — 



