INJUKIOUS INSECTS. 



81 



Fig. 3. 



a, male; b, female; c, a portion of her antennae; 

 d, abdominal segment enlarged. 



moths emerge, ascend the trees and lay their eggs for 

 another generation. Some of the individuals, however, 

 emerge in the fall and lay then- eggs, but these do not hatch 

 till the following spring. The wingless female is of a pale 

 ash color, and the male is of the same color, with a pale 

 broken band across the fore wings, near the outer margin, 

 and three interrupted brownish lines between that and the 

 base. The hind wings are of a very pale ash color or very 

 light gray, with a darker dot near the middle. 



The fall canker-worm (^Anisopteryx autumnata, Peck), 

 Fig. 3, emerges from the 

 ground late in the fall, 

 after the leaves have fal- 

 len from the trees and 

 the frosts have destroyed 

 all the tender plants. The 

 females climb the trees 

 attended by the males, 

 who hover around on the wing. After the mating of the 

 moths the females lay their eggs side by side, in regular 

 masses. Fig. 4, often as many as a hundred together, in an 



exposed situation on the 

 twigs or branches of the 

 trees. Sometimes the fe- 

 males, through mistake, 

 crawl up on the side of a 

 building and deposit their 

 clusters of eixsfs on the ex- 

 posed surface. 



The eggs are cylindri- 

 cal, but somewhat smaller 

 at the basal end ; while the 

 other end is flattened and has a dark rim with a depressed 

 centre (Fig. 4, a and b). These hatch in the spring, at 

 about the same time as the other species, and the larvae have 

 habits similar to those of the spring species. 



The full-grown larvae are nearly an inch long, varying in 

 color from greenish yellow to dark brown, with pale stripes 

 running lengthwise; and they differ still further from the 

 other species in having three pairs of abdominal legs (Fig. 



Fig. 4. 



a and 6, egge, enlarged ; c and d, enlarged seg- 

 ments of the larva; e, cluster of eggs; /", 

 larva; g, pupa; h, end of the pupa. 



