AGRICULTURAL EXPERIMENT STATION. 



131 



Hind wings greyish brown witli a white band crossing them, and in 

 the centre a faint blackish dot. Fig. 19, a. 



Female — Wingless ; uniform shining ash color above, gray be- 

 neath ; length three to four-tenths of an inch. The female has a 

 sluggish movement and a spider like appearance. 



FIG. 19. 



Fig. 19, b. represents the female natural size. 



Eggs — Grayish, flattened above, with a central puncture and a 

 brown circle near the border. Each female lays 100 or 200 eggs in 

 rows arranged in clusters on the twigs or branches, usually in 

 exposed situations. 



In Fig. 19 d. and Fig. 20 e. are shown egg clusters natural size. 

 The eggs magnified are shown in Fig. 20 a. and b. 



FIG. 20. 



Larva — Pale olive green when young, but varying in color, when 

 grown, from greenish yellow to dark brown. Dorsal band broad, 

 brownish ; lateral lines three, white, the middle one paler ; broad 

 brown bands below the lateral lines, and below that a broad white 

 band. Under side, flesh-colored ; head brown. 



These caterpillars belong to the group of inch or measuring worms, 

 because they alternatel}' loop and extend the body in moving. 

 When at rest they sometimes assume the position shown in Fig. 20, 

 f . and can hardly be told from twigs. Fig. 20, c. shows one of the 

 segments of the body magnified, and Fig. 20 f. the larva full 

 grown. When full grown they are about one inch long. When 

 mature they crawl down the trunk or let themselves to the ground 



