22 THE CANADIAN ENTOMOLOGIST. 



of 2 and following segments are very small black rounded processes in 

 cross line and equi-dislant, placed on the second ring of each segment ; 

 these are very variable in number ; one larva had four on 2, and two each 

 on 3 and 4, no others ; another had three on 2, one on one side, two on 

 the other, six on 3, two on 4, and these last were larger than any others ; 

 six seems to be the full number on a segment, and they vary from that to 

 one, present on some segments and lacking on others, with no apparent 

 regularity ; so also the number of lateral processes differs much ; one had 

 these on all segments except 2, 5, 9 and 133 as the stage progresses a 

 yellow stain appears in the band on each segment, and at last is often 

 orange-tinted ; head yellow-green, a little lighter than body. To next 

 moult about four days. 



After fourth moult: Length .6 to .74 inch] to maturity about three 

 days. There was much change in the markings at third moult, but still 

 more at fourth. Some which had been wholly green at this moult dis- 

 covered cross bands of black and yellow, one or both, and there was 

 much variation in the extent of these bands. 



Mature Larva. — Length 1.1 to 1.3 inch; cylindrical, of nearly even 

 thickness from 3 to 113 thickly covered with small black tubercles, each 

 of which gives a short black hair; color yellow-green, light or dark ; along 

 base a yellow-white band with a dash of orange on each segment, and 

 sometimes the orange is nearly continuous ; over the band on 3 and 4 

 each a large vitreous black rounded process, from the top of which comes 

 a small hair, and around the base is a ring of black points ; some larva; 

 have additional processes of same character on the succeeding segments, 

 but there is much variation ; occasionally all are large as on 3, usually 

 they are much smaller ; in one example they diminished regularly from 4 

 to 12 ; on dorsum of one or many segments are small black processes on 

 the second ridge, varying from six to one, and often wanting ; the same 

 ridge is covered by a black band, sometimes present on every segment, 

 sometimes only on the two or three anterior ones, with broken lines on 

 dorsum or sides of the succeeding ones, frequently however wanting ; in 

 many examples the first ridge of every segment is bright yellow, and the 

 complete series of black and yellow bands is often present ; but others 

 have the yellow bands broken up on middle and last segments, or lack 

 them on these segments ; others have a yellow line instead of band ; and 

 often there is no trace of yellow anywhere ; some larva; therefore are 





