. Insects injurious to fruits. Illustrated with four hundred and forty wood-cuts. Insect pests. ay No. 141.—The Grape-vine Epimenis. Psycomorpha epimenis (Drury). There is still another grape-feeding insect which, in the cat- erpillar state, bears a strong general resemblance to Nos. 138 and 139. The larva (Fig. .273, a) in this species is smaller, of a bluish-white color, with four transverse black bands on each segment, as shown at b in the figure, and a few black dots, but lacks the orange bands which dis- tinguish the three species last described. The shield behind the head, the hump on th
. Insects injurious to fruits. Illustrated with four hundred and forty wood-cuts. Insect pests. ay No. 141.—The Grape-vine Epimenis. Psycomorpha epimenis (Drury). There is still another grape-feeding insect which, in the cat- erpillar state, bears a strong general resemblance to Nos. 138 and 139. The larva (Fig. .273, a) in this species is smaller, of a bluish-white color, with four transverse black bands on each segment, as shown at b in the figure, and a few black dots, but lacks the orange bands which dis- tinguish the three species last described. The shield behind the head, the hump on the twelfth segment, and the anal plate are of a dull-orange color; the dots on the hump are arranged as shown at c in the figure. The young larva attacks the ter- minal buds of the vine in spring, fastening the young leaves by a few silken threads, and secreting itself within the en- closure. When full grown, which is usually towards the end of May, it bores into soft wood or any other suitable sub- stance, and there changes to a reddish-brown chrysalis, about four-tenths of an inch long, roughened on the joints, and having a curious, flattened, horny projection on each side of the tip. Within this enclosure it remains until the following spring, when the perfect insect escapes. The moth (Fig. 274) is of a velvety-black color, with a broad, irregular, white patch extending nearly across the front wings, and a somewhat larger and more regularly formed spot of a dull orange-red across the hind wings. The wings are also sprinkled with brilliant purplish scales, most numerous along the outer margins, where they form a narrow band. The under side is paler, with similar markings, the purplish scales appearing very distinct on the front and posterior margins of the hinder wings. The antennae of the male are toothed, Fig. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these
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Keywords: ., bookcentury1800, bookdecade1880, bookpublisherphila, bookyear1883
