. A manual for the study of insects. Insects. LEPIDOPTERA, 355 of a large proportion of our common fruit and forest trees; but we have found it more frequently on wild 'cherry and ash than on others. The cocoons can be easily collected during the winter from these trees. This is the best way to obtain fresh specimens of the moths, which will emerge from the cocoons in the spring or early summer. The cocoon (Fig. 435) is interesting in structure. It is greatly elongated and is enclosed in a leaf, the petiole of which is securely fast- ened to the branch by a band of silk extending from the co-
. A manual for the study of insects. Insects. LEPIDOPTERA, 355 of a large proportion of our common fruit and forest trees; but we have found it more frequently on wild 'cherry and ash than on others. The cocoons can be easily collected during the winter from these trees. This is the best way to obtain fresh specimens of the moths, which will emerge from the cocoons in the spring or early summer. The cocoon (Fig. 435) is interesting in structure. It is greatly elongated and is enclosed in a leaf, the petiole of which is securely fast- ened to the branch by a band of silk extending from the co- coon ; thus the leaf and enclosed cocoon hang upon the tree throughout the winter. At the upper end of the cocoon there is a conical valve like arrange- ment which allows the adult to emerge without the necessity of making a hole through the cocoon. This structure is char- acteristic of the cocoons of the moths of this and the following genus. The Angulifera Moth, Callo- sarnia angulifera (C. an-gu-lif'e- ra).—This is a somewhat rare in- sect which so closely resembles the Promethea Moth that by many it is considered a variety of it. Specimens of it are usu- ally a little larger than those of Q. promethea, and the transverse line and discal spots are more angular. The most important differences, however, are pre- sented by the male, which quite closely resembles the female. Fig. 435,—Callosaviiapromethea, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Comstock, John Henry, 1849-1931; Comstock, Anna Botsford, 1854-1930. joint author. Ithaca, N. Y. , Comstock Pub. Co.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectinsects, bookyear1895
