. Insects injurious to fruits. Illustrated with four hundred and forty wood-cuts. Insect pests. INSECTS INJURIOUS TO THE GRAPE. ATTAOKIM THE EOOTS. No. 122.—The Broad-necked Prionus. Pi'ionus laticollis (Drury). This is a gigantic borer (Fig. 232), from two and a half to three inches in length, of a yellowish-white color, with a Fig. small, horny, reddish-brown head, and a bluish line down the back, which cuts for itself a cylindrical hole through the centre of the root of the vine, a little below the surface; and when the root is barely large enough to contain the larva, ndthing but a t
. Insects injurious to fruits. Illustrated with four hundred and forty wood-cuts. Insect pests. INSECTS INJURIOUS TO THE GRAPE. ATTAOKIM THE EOOTS. No. 122.—The Broad-necked Prionus. Pi'ionus laticollis (Drury). This is a gigantic borer (Fig. 232), from two and a half to three inches in length, of a yellowish-white color, with a Fig. small, horny, reddish-brown head, and a bluish line down the back, which cuts for itself a cylindrical hole through the centre of the root of the vine, a little below the surface; and when the root is barely large enough to contain the larva, ndthing but a thin skin of bark is left, but this is always found entire, so that the insect cannot be easily discovered. It is probable that it lives in the larval state about three years, and that it changes to a chrysalis (Fig. 233) within the root towards the end of June. The beetle appears about the middle of July, and is known as the Broad-necked Prionus. Fig. 234 represents the female, which measures from an inch and a quarter to an inch and three-quarters in length, and is of a brownish-black color, with strong, thick jaws; the antennae are rather slender; the thorax is short and wide and armed at the sides with three teeth. The w^ing-covers have three slightly-elevated lines on each, and 227. 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
