Bulletin . ut 35 days for their development, moltingfour times during growtii. The full gi-own caterpillar resemblesthe two species next described, having the pencil or brush ofblack hairs projecting like a horn on either side of the head, anda similar median tuft near the tip of the abdomen, and with thefour white tussocks of hairs on the middle of the first four ab-dominal segments. The present species, however, is much darker *,Notolophu8 antiqua Linn, July, 190S.] CATERPILLARS INJURING FOLIAGE. 221 than the others, being qnite lilackish in color, the head of thecaterpillar is black, the re
Bulletin . ut 35 days for their development, moltingfour times during growtii. The full gi-own caterpillar resemblesthe two species next described, having the pencil or brush ofblack hairs projecting like a horn on either side of the head, anda similar median tuft near the tip of the abdomen, and with thefour white tussocks of hairs on the middle of the first four ab-dominal segments. The present species, however, is much darker *,Notolophu8 antiqua Linn, July, 190S.] CATERPILLARS INJURING FOLIAGE. 221 than the others, being qnite lilackish in color, the head of thecaterpillar is black, the retractile tubercles on the middle of thetenth and eleventh segments are orange, and projecting from eachside of the second abdominal segment is a tuft or pencil of blackhairs, often with a slighter and shorter pencil in front, which iswanting on the other two species. (See figure 10, b.) The full grown caterpillar spins a loose cocoon upon a leafor branch and transforms to the pupa during the first or second. ^iA, Fig. 9. Eggs of Rusty Tussock Moth. (Notolophus antiqua Linn.) week in June; 12 to 15 days later, or about June 20, the mothsemerge. Moth.—The female moth is wingless and looks very little likethe male, being of a grajdsh color, looking more like a fat crawls out upon the cocoon where next day she lays her eggsand soon dies. The male is a rust-brown color with wings ex-panding slightly over an inch. The fore-wings are crossed bytwo darker bands and have a conspicuous white spot near theanal angle. The eggs laid by these moths hatch early in July (July 5,1905) and the caterpillars from them become mature in latesummer. From them develop moths which lay eggs that remainon the trees over winter, thus making two complete broods eachyear. As far as observed this species does not occur in such largenumbers or do so serious damage as the White-marked Tussock 222 N. H. AGR. EXPERIMENT STATION. [Bulletin 139 Moth, though it is much the more common species iu all bu
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