202 THE CANADIAN ENTOMOLOGIST. 



this respect ; head rounded ; color shining black ; many black hairs scat- 

 tered over the face curving downward. Duration of this stage 3 days in 

 May, 2 in summer. 



After ist Moult. — Length .14 inch soon after the moult, in 24 hours 

 .20 inch ; slender, even ; color red-brown, with indistinct whitish lines ; 

 of these, a wavy line runs with second laterals ; from base of each first 

 lateral is an oblique line outward to the front of the segment, and from 

 each dorsal are two such lines, one on either side ; armed with seven rows 

 of spines, one dorsal, and three on either side, disposed as in Comma ; 

 these are short, stout, black, beset at top with short branches, with some 

 shorter spines on the sides, each ending in a black bristle ; as the larva 

 approaches second moult, the bases of the dorsal and ist lateral spines 

 become white or yellow, or reddish-yellow, while the color becomes more 

 red, and the lines become more distinct ; on 2 is a dorsal transverse row 

 of 4 short, simple spines ; legs and feet dark brown ; head rounded, 

 depressed at top, the vertices a little produced, each bearing a stout, thick, 

 black process, with conical spine at top, and shorter ones around the base 

 of this ; color black, with many black hairs. Duration of this stage from 

 2 to 3 days. 



After 2nd Moult. — Length .24 inch ; color black, the lines as before, 

 with the addition of one running with lower laterals, more distinct, often 

 macular ; spines as before, but variable in color ; in some examples, all 

 are black except the dorsals and ist laterals on 4, 6, 8, 10, where they are 

 reddish-yellow; some have the spines on these rows light, except on 9, 11 

 and 12; usually the second laterals are black and the lower row is pale 

 yellow ; in all cases the tips are black ; as the stage proceeds the color of 

 body changes to olive-brown, and the lines become more conspicuous ; 

 head as before, much covered with white simple spines. Duration of this 

 stage from 2 to 3 days. 



After 3rd Moult. — Length .5 inch ; color black, with cream-white 

 lines, quite macular ; spines very variable ; some examples have every 

 spine of the upper five rows reddish to reddish-yellow, the lower laterals 

 pale yellow ; some have the dorsals and ist laterals from 3 to 11 red, the 

 rest and all of second laterals black ; some have the body color vinous 

 • instead of black, with no black spines, the upper rows very red anteriorly, 

 the lower laterals yellow ; the lines yellow ; head either deep brown-red, 

 or decided red in the vinous larvae, the processes red, with spines both 



