. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. THE WHITE-MARKED TUSSOCK-MOTH. 29 THE WHITE-MARKED TUSSOCK-MOTH. {Orgyia leucostigma Suiitli & Abbot.) HABITS AND NATURAL HISTORY. The Eggs.—During tbe month of June, and more especially late in fall and throughout the winte'r, glistening white objects may be seen ou the trunks and the larger branches of trees, or in the corners of the fences near by, or on bunches of dead leaves hanging on the tree (see Fig. 13 a). Upou examination these masses will be found to be glued onto a cocoon of dirty gray color, and
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. THE WHITE-MARKED TUSSOCK-MOTH. 29 THE WHITE-MARKED TUSSOCK-MOTH. {Orgyia leucostigma Suiitli & Abbot.) HABITS AND NATURAL HISTORY. The Eggs.—During tbe month of June, and more especially late in fall and throughout the winte'r, glistening white objects may be seen ou the trunks and the larger branches of trees, or in the corners of the fences near by, or on bunches of dead leaves hanging on the tree (see Fig. 13 a). Upou examination these masses will be found to be glued onto a cocoon of dirty gray color, and to consist of numerous perfectly round, cream-white (^ggf^, which are partly covered by a glistening white froth. a h c Fig. 13.—Orgyia leucostigma: a, female on cocoon ; b, larva ; c, female pupa ; d, male pnpa. or spittle like matter. In one of these egg-masses which we received from Kansas we have counted as manj^ as 780 eggs, while from another mass we obtained upward of 400 young caterpillars. Development and Characters of the Larva.—In the latitude of Saint Louis, Mo., and Washington the eggs begin to hatch about the middle of May, and the newly-born caterpillar, not quite 3 millimeters in length, is of dull whitish-gray color, with the under side paler, the upper side being covered with rather long hairs and tufts of a dark-brown color. In two days from hatching small orange spots begin to appear along. 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 United States. Bureau of Entomology. Washington : G. P. O.
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