106 THE CANADIAN ENTOMOLOGIST. 



AFTER SECOND MOULT— Length .24 inch. Shape as at last 

 stage ; a fleshy ridge over the feet; color dull ochrey-yellow, striped with 

 brown ; the dorsal stripe broad and dark, and a similar one on the lower 

 part of the side ; two narrow stripes on the middle of each side, paler 

 colored ; the tails reddish at tips ; surface of body as before ; head shaped 

 as before, yellow, the upper front crossed by two arched rows of rounded 

 brown patches. To next moult 14 days. 



AFTER THIRD MOULT— Length. 44 inch. The middle segments 

 stouter, the base broader, than before ; color pale ochre-yellow somewhat 

 mottled with reddish on dorsum, but variable in this respect ; the lateral 

 stripes sometimes nearly or quite obsolete, and in place of the upper one 

 is a dark point or spot at the extreme hinder part of each segment from 

 4to.io; behind this the side is mottled with a darker shade than the 

 ground ; the basal ridge buff; surface more roughened than before ; head 

 nearly as before, the spots on the face darker, and a third row appears 

 faintly below the others. To next moult 30 days. 



AFTER FOURTH AND LAST MOULT— To maturity days. 



MATURE LARVA— Length 1 inch. Body flat at base, the dorsum 

 rounded, much arched on middle segments, the sides flat and sloping ; 

 over the feet a fleshy ridge ; the second segment constricted much as in 

 Hesperia ; the last segment bifurcate, each fork short, pointed, divergent ; 

 color of dorsum yellow-brown ; of sides, darker ; a medio-dorsal band 

 dark brown, and on either side of this on each segment from 4 to 1 1 is an* 

 indistinct dark patch ; the lateral area separated from the dorsal by two 

 wavy parallel lines, the upper one dark, the other yellowish ; on the side 

 of each segment from 5 to 1 1 is a dark oblique stripe ; the basal ridge 

 yellowish ; the tails tipped with red ; the whole surface covered with 

 sharp tubercles of irregular sizes and colored as the ground, each emitting 

 a short brown hair ; feet and legs yellow-brown ; head sub-pyriform, flat- 

 tened in front, truncated at summit and slightly depressed ; the vertices a 

 little produced, pointed and compressed ; color yellow-brown, finely 

 tuberculated ; the face crossed by three rows of rounded brown patches. 



CHRYSALIS — Length .5 inch. Same shape as sosybius ; cylindrical, 

 the abdomen stout and larger than the anterior portion ; mesonotum 

 rounded, arched : the head case truncated abruptly from the base of the 

 mesonotum, narrow ; wing cases somewhat flaring at base ; the neuration 

 of the wings seen dfstinctly ; color pale yellow-brown, the wing cases and 



