188 Journal New York Entomological Society. [voi. iv. 



narrower centrally. Segments fairly well marked ; skin perfectly 

 smooth. A subdorsal and a lateral row of thick processes with an api- 

 cal seta and radiating crown (Plate IX, fig. 2) the terminal half of each 

 more slender than the basal half and with an enlarged tip. There are 

 eleven of the horns in the subdorsal row (joints 3 to 13) and nine in the 

 lateral row (joints 3, 4, 6 to 12), all about alike in size. The subdorsal 

 row stand at about 45 - with the body, the lateral row are horizontal. 

 Color whitish, a faint, more opaque yellowish tint on joints 6 to 9 

 centrally. Length i.i mm. The larva does not feed. 



Siage II. — Horns shaped much as before, but covered with pale, 

 black-tipped spines with swollen bases as in the mature larva (Plate IX, 

 fig. 6), but only about twelve on each horn. Skin finely clear granular. 

 Dorsal depressed spaces (i) double, small and round. Horns of sub- 

 dorsal row all alike; those of lateral row on joints 3 and 4 a little lon- 

 ger than the rest, the apical spine setiferous. Dorsal space rather 

 broad, even, rounded at joint 3 ; lateral space rather large, diminishing 

 at the ends; subventral space very small. Ridges marked by the 

 moderate rounded horns, the subdorsal row projecting rather more than 

 45°, but not horizontal. The larva is not greatly flattened, both the 

 ridges being prominent. Under a high power the skin appears creased 

 shagreened, almost scaly, uniform. Color ground glass white, immacu- 

 late, except the black tips of the spines. Length i.i to 1.8 mm. 



Stage III. — Elliptical, gently flattened ; dorsal space rather narrow, 

 of even width, lateral space broad, oblique, diminishing at the ends; 

 subventral space small, contracted. Horns subequal, slender, tapering, 

 conical, the subdorsal ones extending at about 60°, the lateral hori- 

 zontal ; spines slender, short, with small black tips. The subdorsal 

 horn on joint 13 and the lateral ones on joints 3 and 4 are a little 

 larger than the others. Skin closely shagreened, as if the granules were 

 appressed and concaved instead of convex as usual. Color light yel- 

 lowish green, the horns paler ; a pale yellow line along the subdorsal 

 ridge, straight, faint at the ends, the pair connected by a faint bridge 

 on joint 9. Length 1.8 to 3 2 mm. 



Stage IV. — Elliptical, flattened; subdorsal horns considerably 

 shorter than the lateral ones, all slender, tapering, the pair on joint 13 

 larger. Dorsal space narrow, a little wider at both extremities. Color 

 pale green, a faint yellow line along the subdorsal ridge with a little red 

 dot in the bridge at joint 9. Horns paler, the subdorsal on joint 3 and 

 lateral on 3 and 4 have reddish tips. There is some light green pig- 

 ment in the dorsal space, supplementing the color of the blood. An 



