THE CANADIAN ENTOMOLOGIST. ' 89 



About eight days after beginning to feed the larva changed color, be- 

 coming pale green, the lines as before, head as before. From end of 

 hibernation to first moult 21 to 38 days, the larvje being on grass in a 

 warm room. 



After First Moult. — -Length at 24 hours after the moult, .15 inch; 

 tapering from anterior segments to 13 both dorsally and laterally, the last 

 ones a little arched ; 13 ends in two conical tails, one at either side, the 

 space between roundly excavated ; body covered with rough tubercula- 

 tions, from which come short stiff processes, not tapering, but small at 

 base, and thick at end and rounded, varying in size and somewhat in 

 length ; rough also like the bristles at first stage ; except on 2, where 

 these are turned forward, all are bent back and flattened to the body, 

 which gives a downy coating to whole surface ; color green ; a pale brown 

 mid-dorsal line, two such on middle of side and another over spiracles ; 

 feet green, whitish at ends, pro-legs green ; head a little broader than 2, 

 sub-globose, bright green, pitted with darker green, rough with white 

 tubercles, each of which gives a process Hke those on body, and bent 

 down; ocelli emerald. Duration of this stage 15 to 20 days. 



After Second Moult. — Length at 24 hours, .3 inch; same shape; 

 color either yellow-green or a bluish sage-green ; covered with bent pro- 

 cesses as before ; the lines as before, but green instead of brown ; along 

 base a yellow stripe; head as before. Duration of this stage 12 to 18 

 days. 



After Third Moult. — Length at 20 hours, .4 inch ; color yellow-green ; 

 tails reddish ; the mid-dorsal stripe distinct, the three side lines not well 

 defined ; the basal ridge yellow ; there is also now a sub-dorsal line or 

 narrow stripe of pale yellow. Duration of this stage 15 to 20 days." 



After Fourth Moult- — Length at 18 hours .54 inch ; closely as in last 

 previous stage ; 5 days later was fully grown. 



Mature Larva. — Length .94 inch, greatest breadth .12 inch ; cyHn- 

 drical, tapering from middle to end both on dorsum and sides, rather 

 stout in middle, but not obese, the anterior segments even ; ends in two 

 sharp conical divergent tails ; each segment creased six times, and on the 

 flattened ridges so caused are numerous fine yellowish tubercles, each of 

 which sends out a short, slender, white process, more or less pressed to 

 the surface ; color yellow-green over dorsum to sub-dorsal band, from 

 that to base more green, less yellow ; the tails pale red, on outer sides 



