Guide to the study of insects, and a treatise on those injurious and beneficial to crops: for the use of colleges, farm-schools, and agriculturists . Thyridopteryx. It constructs tin oval cocoon (Fig. 223 d)which hangs to the edge of the leaf. The genus PeropJtom, another sack-bearer (P. MelsheimeriiHarris), is a gigantic Psychid, being about the size of the silk-worm moth, which it closely resembles in the imago state. Italso lives in a case during the larva state, formed of two oblongpieces of leaf, fastened together in the neatest manner by theiredges, and lined with a thick a
Guide to the study of insects, and a treatise on those injurious and beneficial to crops: for the use of colleges, farm-schools, and agriculturists . Thyridopteryx. It constructs tin oval cocoon (Fig. 223 d)which hangs to the edge of the leaf. The genus PeropJtom, another sack-bearer (P. MelsheimeriiHarris), is a gigantic Psychid, being about the size of the silk-worm moth, which it closely resembles in the imago state. Italso lives in a case during the larva state, formed of two oblongpieces of leaf, fastened together in the neatest manner by theiredges, and lined with a thick and tough layer of brownishsilk. The larva is cylindrical, as thick as a common pipe-stem and light reddish brown in head has extensible, jointedfeelers which, when extended, arekept in constant motion, while be-hind is a pair of antenna-like organs,broad and flattened at the end. Thetail is widened and flattened, form-ing a circular horny plate, which like the operculum of a whelk,closes up the aperture of the case. Before transforming Avithinits cuse, the larva closes each end with a circular silken pupa is blunt at the hinder end and wit
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Keywords: ., bookcentury1800, bookdecade1870, bookpublishe, booksubjectinsects
