62 THE CANADIAN ENTOMOLOGIST. 



were brought out, two short stubby horns, bifurcated low down, color 

 greenish-yellow, with a tint of brown. 



On 22nd, the first larva which passed first moult was swollen for 

 second ; remained in that condition a long time, and finally passed second 

 moult 27th. On 6th March, another was swollen for same moult. There 

 were then but half a dozen left out of perhaps three score larvae from the 

 egg. Day after day they died, and by nth every one had died. So that 

 only one passed 2nd moult. This is but a melancholy showing, but it 

 was much to get descriptions of three larval stages, and greatly enlarged 

 drawings by Mrs. Peart of the first two stages. I learned something by 

 the experience, and with another opportunity, I may perhaps reach pupa 

 and imago. I got from Dr. Staudinger a beautifully prepared blown skin 

 of Parn. Apollo, and from that could see that the larva of Smmtheus at 

 maturity would be closely like it. It was like it at the second stage, that 

 is, with the first moult the larva had put on the characters of maturity 

 very nearly. 



I will give herewith the description of the stages observed, as it may 

 be long before any thing more is known of this species, or of the pre- 

 paratory stages of any of our Parnassians. 



Egg. — Flattened, depressed at summit about the micropyle, the sides 

 curved ; the surface encrusted in hexagonal pattern, at each angle of every 

 figure a minute cell ; color chalk-white. Figured and described in But. 

 N. A , vol. I. The shape is like that of a Lycaena. 



Young Larva. — Length .08 inch; cylindrical, tapering both on dor- 

 sum and sides from 3 or 4 to last segment, each segment well rounded ; 

 much covered with long, stiff, black hairs, or bristles ; on dorsum are four 

 rows of these, each hair springing from a little tubercle ; on 2, 3, 4 these 

 are arranged in a cross row, on the middle of the segment, on 2 they are 

 equidistant, but on 3 and 4 there is a wider space between the 2nd and 

 3rd tubercle than the others ; also on 2 is another cross row of 4 near the 

 front, the pair on either side mid-dorsal line nearer together than the posterior 

 tubercles on same segment; segments 4 to 13 inclusive have these hairs 

 disposed in two rows, one being on the front part, the other on posterior 

 part, and more widely separated ; so that on these segments there are 

 formed two dorsal longitudinal rows, and two sub-dorsal ; the hairs on 

 anterior segments are curved and directed forwards, from 5 to 10 are 

 nearly erect, but still turned forwards ; on the last segments turned back ; 

 high on the side is a row of large, flattened tubercles from 2 to 11, and 



