Young Larva.—Length .10 inch; body cylidrical; head broader than the body, oblique. Color of the upper part and sides of joints 2,4,5,7,8,9,12 and 13, reddish purple; the rest of the upper part and sides and the venter dull whitish; six rows of tubercles from which proceed small clusters of brown hairs, the four rows of dorsal clusters longer than the body; head black; feet purplish. Duration of this period, 4 days.