Egg.—Obovoid, the base a little flattened, and under the middle thereof is a slight rounded protuberance of lesser diameter; surface smooth; color greenish-white. Duration of this stage 4 to 6 days.

Young Larva.—Length .13 inch; cylindrical; head twice as broad as any other segment, body tapering slightly from 2 to 13; each segment from 3 to 12 several times creased, making 6 flat ridges, of which the foremost one is broadest, and on this and the fifth ridge each is a minute tubercle and rather long white hair, bent forward, the whole series forming two subdorsal rows, one a little below the other, from 3 to 13; on the middle of side a similar row, one hair to each segment and placed on the second ridge, all of them bent forward; lower down a third series, one to each segment, placed on the fourth ridge, all bent down and back; two short hairs over each pro-leg; on segment 2 are four long hairs on each side, nearly in line, two being subdorsal, the others lateral; on 13 are four hairs in cross row, all curved back, and one on either side behind these; this segment is roundly excavated at extremity, making on either side a sharp point, which sends back a straight hair; color of body whitish-yellow, in a few hours changing to pale green; head sub-globose, flattened and depressed at top, broadest at base, a little broader than high, the vertices rounded, and on each a slight protuberance, with long curved hair; a similar hair a little below and nearer the suture, and two rows of shorter hairs across face, four in upper, six in lower row; surface corrugated; color yellow, somewhat brown-tinted. Two days later, as the body was changing to green, the head changed to yellow-green. Duration of this stage 6 to 8 days.