. A manual for the study of insects. Insects. Fig, 751.—Wings of Rhog'asparasiticus. wings have several closed cells, the fore wings are furnished with a stigma, and the vein between cells V^ and ist N^ is wanting (Fig. 751). This last character is important, as dis- tinguishing the members of this family from the true Ichneu- mon-flies, which they resemble both in appearance and habits. It is not an uncommon thing, especially in vineyards, to find a feeble caterpillar with its back covered with little, white, oblong bodies, which the ignorant usually think are its own eggs (Fig. 752). These a
. A manual for the study of insects. Insects. Fig, 751.—Wings of Rhog'asparasiticus. wings have several closed cells, the fore wings are furnished with a stigma, and the vein between cells V^ and ist N^ is wanting (Fig. 751). This last character is important, as dis- tinguishing the members of this family from the true Ichneu- mon-flies, which they resemble both in appearance and habits. It is not an uncommon thing, especially in vineyards, to find a feeble caterpillar with its back covered with little, white, oblong bodies, which the ignorant usually think are its own eggs (Fig. 752). These are the cocoons of braconid par- asites. The larvae obtain their growth within the body of the caterpillar, and just before it perishes they leave it, and spin their silken cocoons upon its back. When these cocoons are examined with a lens they are found to be beau-. FiG. 75V.—Caterpillar with cocoons of a 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 Comstock, John Henry, 1849-1931; Comstock, Anna Botsford, 1854-1930. joint author. Ithaca, N. Y. , Comstock Pub. Co.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectinsects, bookyear1895
