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black hairs; the spines as in this genus in seven rows, — one dorsal, 

 three lateral, — besides a row of smaller ones over feet and along base; 

 all the spines are slender, tapering, each thickly beset with short hairs 

 or bristles, and the color of these as well as the spines and tubercles is 

 same as that of the body, yellow-green; head obovoid, the vertices 

 rounded; color black, or brown-black, with fine tubercles and hairs. 

 Duration of this stage three to four days. 



After second Moult: length at twelve hours from the moult . i8 inch; 

 color brownish green on dorsum with a brown line running with the 

 dorsal spines; the lateral band darker; spines shaped as before, brown- 

 ish green, except the lower lateral row, which, with the bristles, are 

 yellow-green; so the small spines at base; head as before. 



At thirty-six hours from the moult there appear three brown lines on 

 dorsum, running with the upper three rows of spines, and the tuber- 

 cles and spines on the dark band are nearly concolored with it; on 

 each vertex of head is now a whitish bar from back to front. Duration 

 of this stage three to four days. 



After third Moult: length at twelve hours .25 inch; the dorsum now 

 shows distinctly the three brown lines; the blackish band as before; at 

 one day later the dorsum has become darker by the expanding of the 

 brown lines; the five upper rows of tubercles and spines are blackish, 

 the others yellow-green. To next moult five to six days. 



After fourth Moult: length at twelve hours .5 inch; the whole upper 

 part, including the five rows of tubercles, black, or brown-black, dotted 

 sparsely with sordid white; some examples have a whitish line running 

 with upper lateral tubercles, others have no line, but an indefinite streak 

 of whitish between dorsals and lateral; the lower part of side a little 

 dotted and mottled with sordid white; in about 4 days reaches matu- 

 rity. 



Mature Larva. — Length .8 inch; cylindrical, even; color of dorsum 

 blackish brown, somewhat dotted with sordid white, or yellow-white, 

 and on either side the dorsal spines runs an indistinct whitish line; 

 next below the dorsal area, and occupying half the side, is a black 

 band ending a little over spiracles, and from this to base is as broad a 

 space, greenish brown, dotted with yellow-white; the whole under side 

 also greenish brown; 2 has a chitinous, black dorsal collar, from which 

 proceed thick tufts of black hairs on either side, the hairs long and 

 short; the dorsal and upper lateral spines are brownish green from 

 more green tubercles; the spines and tubercles of second lateral row 

 are black; the spines of lower lateral row greenish yellow, with a little 

 orange at base, and the row along base are greenish yellow; the spines 

 are short, thick, conical, and all are thickly beset from top to base 

 with short black and brown hairs or bristles, except the lower lateral 

 and basal rows, where the hairs are concolored with the spines; feet 

 black, head obovoid, bilobed, the vertices rounded; color black-brown. 



