. The butterfly book; a popular guide to a knowledge of the butterflies of North America. Butterflies -- North America. Geometridse the one under consideration. It is the part of wisdom in every way to protect the birds. The canker-worm is widely distributed from the Atlantic to the Pticitic Genus ALSOPHILA Hiibner Only one species of the genus occurs within our limits. (i) Alsophila pometaria Harris. (The Fall Canker-worm.) Syn. restitnois Walker. The Fall Canker-worm in many respects closely resembles the preceding species, but a critical eye can at once detect great differences both in the
. The butterfly book; a popular guide to a knowledge of the butterflies of North America. Butterflies -- North America. Geometridse the one under consideration. It is the part of wisdom in every way to protect the birds. The canker-worm is widely distributed from the Atlantic to the Pticitic Genus ALSOPHILA Hiibner Only one species of the genus occurs within our limits. (i) Alsophila pometaria Harris. (The Fall Canker-worm.) Syn. restitnois Walker. The Fall Canker-worm in many respects closely resembles the preceding species, but a critical eye can at once detect great differences both in the form and markings of the caterpillar and of the mature insect. The moths generally emerge from the pupal state in the late fall, or during mild spells of weather in the winter, and may even continue to come forth until the spring is well advanced. The eggs are not laid as those of the preceding species, sin- gly under the scales of bark, Fig. \(^-].—Alsophila pometaria. fl, egg, but are deposited in a com- side view; 3, do., top view; c, side view ,^ \(^ th^ of segment of larva; d, top view of seg- P''^'^ WiA^S lasieneu tO tne ment of larva;/, mature larva; g, pupa; twigS by a Strong gluey Se- h, cremaster. (After Riley.) .- , , ^ , ^ ^ cretion, and are loosely cov- ered with gray hairs, which the female rubs from her abdomen. The caterpillars are not ornamented on the back by a multitude of fine lines, but have a broad brown stripe along the dorsal line. The moths are larger than those of the Spring Canker-worm, and have a distinct whitish spot on thecosta of the primaries near the apex. The cater- pillar undergoes but two molts, and matures very rapidly. It has rudimentary fig. \^%.-a. pometaria. prolegS on the eighth ™ale; r, female antenna; r/, segment of body • ^ ~, . ^ of female, enlarged. (After Riley.) somite. The precautionary measures which have proved effective in combating the Spring Canker-worm are not efficacious in dealing with this species. To effec
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishergardencitynydouble
