THE CANADIAN ENTOMOLOGIST. 163 



about the depressed micropyle ; some of these ridges anastomose near 

 the top, others lower, on the sides ; the spaces between the ridges roundly 

 excavated and crossed by fine striae. 



YOUNG LARVA — Length, .08 inch ; cylindrical, slightly tapering 

 posteriorly, deeply creased at the junction of the segments ; color pale 

 green, but brown patches nearly cover segments 5, 7, 9 and 11 ; furnished 

 with rows of tubercles from which spring black hairs, which are long and 

 curved forwards ; head obovate, a little broader than 2nd segment, pilose, 

 brownish black. 



After 1st moult, length .2 inch; grayish mottled with brown ; armed 

 with 6 rows of short, stout, black spines, which have short black bristles 5 

 feet and legs blackish; head cordate, smaller than second segment, pilose, 

 black. 



After 2nd moult, length .3 inch; cinereous mottled with black, the 

 spines as before; at the base and on outer side of the spines of the 1st 

 lateral row, on the 3rd, 5th, 7th, 9th and nth segments, a yellow patch ; 

 head as before. 



After 3rd moult, length m inch ; cinereous brown, mottled with darker 

 in small patches ; a pale black dorsal line, enlarged on each segment into 

 a rounded spot; the yellow patches as before, but rather orange than 

 yellow ; spines longer, those of 2nd segment decidedly so, being between 

 two and three times as long as any others and projected forward over the 

 head ; head as before, bronze color. 



After FOURTH MOULT and MATURE— Length 1 inch ; color 

 cinereous brown, mottled with velvet black, there being a large patch 

 at the base of each spine of the two dorsal rows, and which is edged with 

 a pale color ; spines long, tapering, irregular, honey-yellow, often orange 

 at base, with black bristles ; those on 2nd segment about 3^ times as 

 long as any others and porrected ; legs and feet black ; head cordate, with 

 rounded vertices, with black bristles over surface ; color bronze. 



CHRYSALIS — Length. 6 inch ; compressed laterally throughout ; the 

 wing cases very prominent and flaring at base ; the head case not much 

 flattened, its vertices prominent, conical, the intervening space being 

 roundly excavated ; the mesonotum prominent, sharply compressed, fol- 

 lowed by a deep excavation ; on the dorsum two rows of sharp, conical 

 tubercles, those on 7th segment much larger than the others, and all 

 anterior to these two gilded ; the two tubercles at head, case also large, 

 umber colored ; color light brown, the wing cases streaked with darker; 

 or the whole surface is a dark brown. 



