Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . economicentomol00smit Year: 1906 THE INSECT WORLD. 281 certain small fruits. It is green, and has six rather j)roniinent warts on the thoracic segments, of which four are coral-red in color and the hinder two are yellow, sometimes with a reddish tinge. On the rest of the body are other tubercles which are furnished with little clusters of spurs and spines. The cocoon is sometimes spun in bushes, attached to a twig, sometimes at an angle of a fence, or wherever the caterp


Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . economicentomol00smit Year: 1906 THE INSECT WORLD. 281 certain small fruits. It is green, and has six rather j)roniinent warts on the thoracic segments, of which four are coral-red in color and the hinder two are yellow, sometimes with a reddish tinge. On the rest of the body are other tubercles which are furnished with little clusters of spurs and spines. The cocoon is sometimes spun in bushes, attached to a twig, sometimes at an angle of a fence, or wherever the caterpillar happens to consider it convenient. The resulting moth is dusky brown and powdery, Fig. 309. Caterpillar of the cecropia moth. tlie hinder margins clay-colored, a kidney-shaped dull-red spot with a white centre and a narrow black edging is near the middle of each wing, and beyond the spot is a wavy dull-red band, bordered internally with white. The primaries near the base are dull red, and near the tip is an eye-like black spot within a bluish-white crescent. Several other species occur, all more or less resembling in general appearance the cecropia, and spin- ning much the same kind of cocoon. Of a somewhat different type is the polyphemus, Telea poly- phennis, which has a green caterpillar without prominent tuber- cles, but with little, black, wart-like processes, giving rise to small, stiff bristles. This feeds upon oak and a variety of other trees, but is rarely abundant, and when forming its cocoon spins np in a leaf, which later drops to the ground. This cocoon is o^-al in shape and completely closed, differing from that of cecropia and its nearest allies, in which it is open at one end.


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