. Insects injurious to fruits. Illustrated with four hundred and forty wood-cuts. Insect pests. said to seek out and devot^r large quantities of the eggs of the curculio. Fig. 199. Two species of parasites are known to attack the larva of this pest. One, known as the Sigalphus curculio parasite, Sigalphus curculionis Fitch, is a small^ black, four-winged fly, rep- resented in Fig. 198, where a shows the male, and b the female. With her sharp ovipositor the female punctures the skin of the curculio larva, Fig. 200. ^ ^ -. i and deposits an egg under- neath, which in due time produces a larva, a
. Insects injurious to fruits. Illustrated with four hundred and forty wood-cuts. Insect pests. said to seek out and devot^r large quantities of the eggs of the curculio. Fig. 199. Two species of parasites are known to attack the larva of this pest. One, known as the Sigalphus curculio parasite, Sigalphus curculionis Fitch, is a small^ black, four-winged fly, rep- resented in Fig. 198, where a shows the male, and b the female. With her sharp ovipositor the female punctures the skin of the curculio larva, Fig. 200. ^ ^ -. i and deposits an egg under- neath, which in due time produces a larva, as shown at a. Fig. 199. When the curculio larva is destroyed by the parasite, the latter encloses itself in a small, tough cocoon of yellowish silk, b, and then gradually assumes the pupa state, as shown at c ; all these figures are magnified. The other species, known as the Porizon curculio. 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 Saunders, William, 1836-1914. Philadelphia, J. B. Lippincott & Co
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Keywords: ., bookcentury1800, bookdecade1880, bookpublisherphila, bookyear1883
