. Bulletin. Fig. 8. Fall Web-Worm. a, Moth in position on leaf laying eggs, side view; b, eggs enlarged.—After Riley. The moths are on the wing in July, and lay their eggs, about fivehundred in number, in clusters on the leaves near the end of a 8. These eggs, which are spherical, about one-twentieth of aninch in diameter, and of a bright golden yellow color, have thesurface of the shell marked with indentations like the surface of athimble. They hatch in about a week or ten days and the youngcaterpillars at once spin a web over themselves, and by their com-bined efforts enclose le
. Bulletin. Fig. 8. Fall Web-Worm. a, Moth in position on leaf laying eggs, side view; b, eggs enlarged.—After Riley. The moths are on the wing in July, and lay their eggs, about fivehundred in number, in clusters on the leaves near the end of a 8. These eggs, which are spherical, about one-twentieth of aninch in diameter, and of a bright golden yellow color, have thesurface of the shell marked with indentations like the surface of athimble. They hatch in about a week or ten days and the youngcaterpillars at once spin a web over themselves, and by their com-bined efforts enclose leaves enough for their present needs, but when 11 this supply is exhausted they extend their web over a fresh supply,and this is continued till many of these webs are a yai-d or more inlength and a foot or more in diameter. When numerous, they do agreat deal of damage, sometimes destroying all the leaves on a Fall Wlb-Worm. a. Dark caterpillar, seen from siilc ; 6, liglit, caterpillar from above; c, dark caterpillarfrom above; d, pupa from below; e, pupa from sii ie; /, moth.—After Kiley. In the latter part of August or early in September, these cater-pillars reach their full growth, and are then about an inch and a halflong with the body greenish yellow dotted with black. There is abright yellow stripe along each side, and a broad blackish stripealong the back in some specimens, as shown in Fig. 9, h. They arethinly clothed with grayish hairs which arise from black and orangecolored tubercles. They now leave their web and scatter in alldirections seeking some place in which to change to pupae, usuallyin some crevice under the bark, or under ground. When theyhave reached a satisfactory shelter they spin a slight cocoon of silkintermixed with hair from their own bodies, and within these cocoonsthey transform to pupae. Fig. 9, d and e, where they remain till thefollowing June or July when
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