THE CANADIAN ENTOMOLOGIST. 11 



the tips, the others are black at tip ; on 7, 9, 11 the spines of these rows 

 are dull yellow, black tipped; on 8, 10, 12, 13 are all dull yellow; the 

 second and third laterals are black on dull yellow tubercles ; on 2 a collar 

 of small yellow spines from similar tubercles ; feet black, pro-legs greenish- 

 yellow ; head subcordate, flattened frontally, each vertex rather high and 

 bearing a stout black compound spine or spinous process ; the face and 

 sides covered with small, simple, conical spines of irregular lengths, black, 

 light yellow and reddish-yellow, each with a hair ; the sides of head and a 

 triangle in front black, rest honey-yellow. As the body lengthened in this 

 stage the black and white bands became more nearly equal in width, and 

 the tubercles and lower parts of spines became of a more uniform honey- 

 yellow. To next moult 3 days. 



After 4th and last Moult. — Length .8 inch, at maturity 1 to 1.2 inch; 

 color buff, the cross stripes on posterior parts of segments black and pale 

 buff ; in front of each dorsal spine is a V-shaped reddish bar, which 

 passes round the spine (or the spine is within the angle), and there is an 

 oblique bar of same color in front of each of the first laterals, and from 

 its base, directed forward and downward ; the second laterals stand on a 

 straight or slightly arched bar of same color ; the spines on 3, 4 and 5 

 larger than elsewhere ; the dorsals white, yellow at bottom (all yellow 

 spoken of is reddish or honey-yellow), and from yellow tubercles ; the 

 first laterals white from 5 to n, but on 3, 4 and 12 are black, with buff 

 branches ; the second laterals are all black, yellow at base and stand on 

 yellow tubercles ; the lower laterals all white, on yellow tubercles ; the 

 collar of spines on 2 is yellow ; spiracles black in yellow ovals ; feet 

 black, pro-legs yellow and brown; head sub-cordate; on each vertex a 

 large compound spinous process, the main stem black, the branches 

 partly black, partly yellow ; the face and sides thickly covered with simple 

 conical spines of irregular sizes, buff or yellow, the sides and frontal tri- 

 angle black, rest yellow. The larva suspended 5 days after 4th moult and 

 in less than 12 hours (20th May) pupated. 



CHRYSx\LIS. — Length .7 inch, greatest breadth .24 inch ; slender, 

 cylindrical ; the head case high, compressed transversely ; at each vertex 

 a short stout conical projection, the space between being rounded ; 

 mesonotum prominent, followed by a deep rounded excavation ; the 

 carina rather slight, rounded, somewhat angular on posterior side ; the 

 wing cases a little flaring at base, depressed laterally, the margins rounding 

 abruptly to the body ; on the abdomen several rows of tubercles, mostly 



