. A manual for the study of insects. Insects. Fig. 329.—Diastictis rihearia. when full grown. It spins a rather dense, spindle-shaped cocoon within a cluster of leaves. The moth (Fig. 328) is ochre-yellow with a reddish tinge. The wings are shaded towards the outer margin with brown, and are thickly spotted with small brown dots. The Currant Span-worm, Diastictis ribearia (Di-as-tic^tis rib-e-a'ri-a).—There are several species of insects that are popularly known as currant- worms. The most common of these are larvae of saw- flies, which can be easily recognized by the large number of prolegs w
. A manual for the study of insects. Insects. Fig. 329.—Diastictis rihearia. when full grown. It spins a rather dense, spindle-shaped cocoon within a cluster of leaves. The moth (Fig. 328) is ochre-yellow with a reddish tinge. The wings are shaded towards the outer margin with brown, and are thickly spotted with small brown dots. The Currant Span-worm, Diastictis ribearia (Di-as-tic^tis rib-e-a'ri-a).—There are several species of insects that are popularly known as currant- worms. The most common of these are larvae of saw- flies, which can be easily recognized by the large number of prolegs with which the abdomen is fur- nished. In addition to the saw-flies there is a yellow looper spotted with black, which often appears in such great numbers on currant and gooseberry bushes as to suddenly strip them of their foliage. This larva has been named the Currant or Gooseberry Span-worm. When full grown it measures about one inch in length, and is of a bright yellow color, with white lines on the sides and with numerous black spots and round dots. It has only four prolegs. There is only a single brood; the larva matures in May or June; the pupa state lasts about a fortnight; the moth flies during the summer months and oviposits on the twigs of the plants ; and the eggs remain un- hatched till the following spring. The moth (Fig. 329) is pale yellow, with the wings marked by ir- regular dusky spots, which sometimes form one or two indefinite bands across them. Fig. 330.—Cint'ilia catenaria. '-r>i r-^\ • \ ,. ^ r^ ^- 1 he Cham-dotted Geom- eter, Cingilia catenaria (Cin-giri-a cat-e-na'ri-a).—This moth. 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
