178 THE CANADIAN ENTOMOLOGIST. 



ridges form a serrated rim ; between the ribs are transverse striae. This 

 egg closely resembles that of Myrina, being higher and narrower than in 

 Cybclc and its allies. 



Young Larva — Length .6 inch ; cylindrical, of even size, the seg- 

 ments well rounded ; color greenish-white ; on segment 2 is a dorsal 

 collar, brown, with bristles ; after 2 on each segment is a cross row of 

 dark brown sub-ovate spots, from each of which spring one or two hairs ; 

 these hairs are long, straight, tapering, and with a rounded knob on end ; 

 head obovate, bilobed, dark brown, shining, a little pilose. 



After 1 st Moult — Length .1 inch; cylindrical, tapering posteriorly 

 from 5 or 6 to end, the segments well rounded ; armed with six rows of 

 black spines, which are stout at base, rising from black tubercles, taper 

 irregularly, and throw out many divergent black hairs ; color grayish, mot- 

 tled and specked with black; head obovate, bilobed, the vertices rounded; 

 black, with black' hairs. 



After 2nd Moult — Length .16 inch ; same shape ; the spines shining 

 black, and all from black tubercles except those of the lower lateral row, 

 which have dull orange tubercles ; on 2 are two large dorsal spines, and 

 on either side two tubercles with hairs ; color dark gray, mottled with 

 black ; on either side of medio-dorsal line a gray stripe, and a pale band 

 along base, over feet ; three days after the moult the gray sub-dorsal lines 

 became broader and coalesced, making a dorsal band, and the space 

 between the dorsal and first lateral spines also became decidedly gray ; 

 head as at previous stage. 



After 3rd Moult — Length .22 inch; spines as before, except that 

 lower laterals are yellow nearly to top ; all bristles black ; the two spines 

 on 2 same length as other dorsals and somewhat porrected ; color black- 

 ish, with dark gray band along dorsum ; the sides between dorsals and 

 first laterals finely mottled with gray. 



After 4th Moult — Length .4 inch ; the spines long, stout at base, lower 

 laterals yellow to tips, and rise from yellow tubercles ; the intermediate 

 spines on 2 and 3 yellow also, those of 2 porrected ; color black-brown 

 mottled with gray-white ; along dorsum two gray lines ; head sub-cordate, 

 not much cleft, the vertices rounded, front flattened ; color dull black, the 

 back of head dull yellow ; face much covered with black hairs. 



After 5th Moult — Length .6 inch, and grew to 1.2 inch at maturity. 



Mature Larva — Cylindrical, stout, the middle segments swollen; 

 color dark brown mottled with black, especially on the anterior part of each 



