. A manual for the study of insects. Insects. 264 THE STUDY OF INSECTS. 1115 Vr The characteristic features in the structure of the wings are the following (Fig. 311): the fore wings have a single III im iiij anal vein, the hind ni4' wings two; in both wings cubitus is apparently three- branched ; and the subcosta of the hind wings does not make a sharp bend into the humeral angle as it does in the Geometridae (Fig. 323). In some forms the basal part of vein V is more or less distinctly pre- served ; and in some an accessory cell is present. Fig. 311.—Wings of iVi7/^^.?«/tfj/rtf^«/«. The larvs
. A manual for the study of insects. Insects. 264 THE STUDY OF INSECTS. 1115 Vr The characteristic features in the structure of the wings are the following (Fig. 311): the fore wings have a single III im iiij anal vein, the hind ni4' wings two; in both wings cubitus is apparently three- branched ; and the subcosta of the hind wings does not make a sharp bend into the humeral angle as it does in the Geometridae (Fig. 323). In some forms the basal part of vein V is more or less distinctly pre- served ; and in some an accessory cell is present. Fig. 311.—Wings of iVi7/^^.?«/tfj/rtf^«/«. The larvsc fccd upon the leaves of shrubs and trees. Our most common species live exposed ; but some species live in folded leaves. They are either naked or thinly clothed with hairs. Many species have only four well-developed pro- legs, the anal pair being rudimentary, or transformed into elongated spikes. Some species are hump-backed; and spines or fleshy tubercles are often present. The trans- formations occur in slight cocoons or in the ground. The family is a large one, more than one hundred species occurring in the United States. The following are some of the more common species :— The Handmaid Moths, i^^/^?^^(Da-ta'na).—Among the more common representatives of the Notodontidae are cer- tain brown moths that have the fore wings crossed with bars of a different shade (Fig. 312), and that bear on the. 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
