. A treatise on some of the insects injurious to vegetation . Insect pests. 312 LEPIDOPTERA. of silk. They remain in their cocoons without further change throughout the winter, and are transformed to but- terflies in the following summer. The viscid locust-tree is sometimes almost completely stripped of its leaves by these insects, or presents only here and there the brown and withered remains of foliage, which has served as a tempo- rary shelter to the caterpillars. Mudamus Bathyttus, Smith. Bathyllus Skipper. (Fig. 135.) In Massachusetts we have what I suppose to be only a local varietv of t
. A treatise on some of the insects injurious to vegetation . Insect pests. 312 LEPIDOPTERA. of silk. They remain in their cocoons without further change throughout the winter, and are transformed to but- terflies in the following summer. The viscid locust-tree is sometimes almost completely stripped of its leaves by these insects, or presents only here and there the brown and withered remains of foliage, which has served as a tempo- rary shelter to the caterpillars. Mudamus Bathyttus, Smith. Bathyllus Skipper. (Fig. 135.) In Massachusetts we have what I suppose to be only a local varietv of the Bathyllus Fig. 135. .• skipper, differing from South- ern specimens in the inferior size of the white spots on the fore wings, the less prominent hind angle of the hind wings, and the darker color of the fringes. It is of a dark brown color; on the fore wings is a row of small white spots across the middle, and another shorter row of only three or four contiguous spots between the first and the tip; the wings beneath are light brown, shaded at the base with dark brown; the hinder pair with a slightly prominent posterior angle, and two dark brown transverse bands. Expands from 1J to lT7ff inch. This species is found on flowers in June and July; in the Southern States it appears also in March and April. The caterpillar is very similar to that of the Tityrus skipper, and is found on various kinds of Glycine, Hedysarum, &c, in May and June. The rest of our skippers belong to the old genus Hesperia of Fabricius, which, as now restricted by the French ento- mologists, very nearly coincides with Pamphila of the Eng- lish writers. The American species are quite numerous, and moreover vary a good deal; which, with the difference existing between the sexes, renders it quite difficult to deter-. 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 perfe
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