124 THE CANADIAN ENTOMOLOGIST. 



inch, and the second laterals .9 inch ; color red-orange, with a broad 

 medio-dorsal band of greenish-black, and a broad, slate-black band which 

 occupies the space between the dorsals and first laterals, and reaches to 

 the farther sides of and embraces the tubercles of these rows ; the base 

 of body slate-black, so that the orange is restricted on dorsum to two 

 narrow stripes lying between the dorsal and the two lateral bands, and to 

 another stripe running with the spiracles (these bands widened much after 

 the moult and as this stage proceeded), the whole upper surface highly 

 glazed ; feet and legs black ; head obovoid, deeply cleft, with high conical 

 vertices, on each of which stands a stout spinous recurved process, . 1 5 

 inch long, black, in all respects formed like the body spines, except that 

 it is less tapering, the upper two thirds being of about uniform size ; the 

 tip conical and giving out a short fine bristle ; a few other like bristles 

 about the sides ; sides and back of head rounded, but the front much 

 flattened ; sparsely pilose ; color of front black, with two vertical orange 

 stripes, one on either side of and very near the suture ; color of hind 

 head, between the horns and down the sides greenish-yellow, the lower 

 part of the side black ; also a black stripe runs back from base of the 

 horn. There was some variation in color at maturity ; some larvae had a 

 gray line or stripe below spiracles ; on one this line was white and 

 extended the whole length, in another it disappeared at 5 ; the color of 

 the dark band on upper part of side was greenish-black, or slate-black, 

 varying with the point of view. From fourth moult to suspension 59 to 

 72 hours ; from suspension to chrysalis 13 to 15 hours. 



Chrysalis — Length 1.05 in.; depth from dorsal to ventral side .34 

 in.; breadth at base of wings .26 in.; breadth across abdomen .2 inch ; 

 long, slender, the thorax much compressed laterally, and the wing cases 

 very prominent, forming a narrow carinated hunch, which rounds abruptly 

 on posterior end ; head case high, cylindrical, compressed transversely, the 

 top sloping on the ventral side at about 45 ; on each vertex a short (.05 

 in. long) ear-like process, excavated on the dorsal side, and crenated at 

 the top ; between these the top of head is twice incurved ; at the base of 

 head case, on dorsal side, a depression ; the mesonotum large, prominent, 

 compressed, carinated, followed posteriorly by a deep and broad depres- 

 sion ; wing cases smooth, a little flaring at base, depressed in middle ; 

 abdomen slender and tapering ; a row of minute medio-dorsal tubercles, 

 and on either sfde of these a row of large, rounded ones, those of the 



