. A manual for the study of insects. Insects. LEPIDOPTERA. 239 Superfamily TORTRICINA (Tor-tri-ci'na). The Tortricids {Tor'tri-cids). The Tortricids are generally small moths ; but as a rule they are larger than the Tineids. They have broad front wings, which usually end squarely. The costa of the front wing curves forward strongly near the base of the wing. When at rest the broad front wings fold above the body like a roof. The moths are variegated in color, but are usually brown, gray, or golden rather than of brighter hues. As a rule the hind wings are of the color of the body and without m
. A manual for the study of insects. Insects. LEPIDOPTERA. 239 Superfamily TORTRICINA (Tor-tri-ci'na). The Tortricids {Tor'tri-cids). The Tortricids are generally small moths ; but as a rule they are larger than the Tineids. They have broad front wings, which usually end squarely. The costa of the front wing curves forward strongly near the base of the wing. When at rest the broad front wings fold above the body like a roof. The moths are variegated in color, but are usually brown, gray, or golden rather than of brighter hues. As a rule the hind wings are of the color of the body and without markings. In the venation of the wings they differ from the Pyralids in having subcosta and radius of the hind wings widely separate beyond the end of the discal cell; and from the Tineids in having the second anal vein of the hind wings forked towards the base (Fig. 286). The larvae vary greatly nir IIL. m habits; but a large proportion of them are leaf- rollers (Fig. 287). It was this habit that suggested the name Tor- trix (Tor'trix) for the typical genus, from which the names of one family and of the superfamily are derived. A large proportion of the rolled leaves found upon shrubs and trees are homes of Tortricid larvae. But it should be remembered that the leaf-rolling habit is not confined to this family. Fig. 286.—Wings of Caccecia cerasivorana. Fig. 287. — Leaf rolled by a larva, probably a 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
