182 Journal New York Entomological Society. [Voi iv. 



setae, shorter than the white hairs of subventral row ; but soon the 

 tubercles elongate, forming the pale basal portion of the spine. Skin 

 smooth, slightly shining. The larva feeds in this stage. Length 1.2 

 to 1.8 mm. 



Stage II. — Instead of the spines of the subdorsal row are now 

 present on joints 4 to 12 a series of laterally extended, short, conic, 

 fleshy appendages, projecting about half their length beyond the sides ; 

 those on joints 7, 9 and 11 much shorter than the others, which are of 

 equal length ; all densely covered with coarse, smooth, pale spines. 

 The other setae, namely all those of joint 3, the lateral row and those on 

 joint 13 form small pale tubercles, with a single hair, inconspicuous, 

 being obscured by the appendages of the subdorsal row. Color dead- 

 leaf brown, the tips of the appendages whitish, the outline evenly 

 fringed by the white spines. Dorsal space narrow, clothed by a itw 

 small dark setae, On the sides, owing to the broad attachment of the 

 subdorsal appendages, the lateral space occupies but one-third, the sub- 

 ventral space two-thirds of the area, both perpendicular. Lateral area 

 brown; subventral dull whitish. Length 1.8 to 2.5 mm. 



Stage III — (Plate VIII, fig. 3) Elliptical, the back flat, produced 

 by laterally extended appendages ; side area small. Appendages as be- 

 fore, but longer, each slightly constricted near the base, rather sparsely 

 covered with stiff, pale setae, arising from conical bases. Yellowish- 

 brown, a double blackish spot on the top of each appendage, the tips 

 pale ; subventral edge white. A tuft of fine short hairs in the center of 

 each segment of dorsal space. Lateral tubercles with single seta ; sub- 

 ventral setae double. Head testaceous, the eye black. Length 2.5 to 

 3.5 mm. 



Stage IV. — Appearance as before, but the horns are more densely 

 covered with the sharp stiff, pale-yellowish setae. The basal portion of 

 each horn is divided off by a constriction, approximately bisecting the 

 short horns. The horn on joint 11 is proportionately longer than be- 

 fore ; otherwise as in the previous stage. Color brown, fringed by the 

 pale spines, the long horns shaded in a darker tint. Length 3.5 to 

 5 mm. 



Stage V. — (Plate VIII, fig. 4) The discrepancy in the sizes of the 

 horns has increased. Those on joints 6, 8 and 10 are elongated, those 

 on joints 7 and 9 remain short and that on joint 1 1 is about as long as 

 the one on joint 12. The lateral tubercles are almost invisible, being 

 covered up by the subdorsal ones ; but they are furnished with a crown 

 of stiff hairs besides the central seta. Color brown, the horns darker 



