COLIAS II. 



white, clubbed appendages ; color brown-green ; feet and legs green ; head 

 rounded, a little depressed at top, thinlj'^ furnished with black tubercles, each 

 with black hair, longer than the hairs on body ; color yellow-green. Duration of 

 this stage about four days. 



After first moult : length .16 inch ; the ridges thickly set with black points, 

 each with its short, black hair ; there are also many white processes, which form 

 five or six longitudinal rows on either side, those on dorsum and down to about 

 mid-side, broad and thin at top, paddle-shaped, on remainder of side, and on front 

 ridge of 2, long, tapering, club-shaped ; on 2, longest and more numei'ous, and 

 directed forward ; head rounded, somewhat depressed at top, with black tuber- 

 cles and many of the white clubbed processes. (Figs, h b^.) To next moult about 

 four days. 



After second moult: length .28 inch ; color dark green, very much as at pre- 

 vious stage ; along base a yellow-white stripe ; the white processes more numer- 

 ous than before, less broad, rather club than paddle-shaped. (Figs, c c'^, c*.) 

 To next moult about three days. 



After third moult : length .4 inch ; color darker green ; the basal stripe wider, 

 with a yellow stain on middle of each segment ; later a red streak appears on 

 part or all the segments within this stripe ; the white processes now replaced by 

 short black hairs from conical tubercles, and around base of each is a ring clus- 

 ter of black specks. Head as before, lighter than body. (Figs, d d"^.) To ne.xt 

 moult about three days. 



After fourth moult : length .55 inch ; color dark green ; the band white, with 

 a macular red stripe. (Fig. e, natural size, e^, e^ magnified.) In three days from 

 the moult the larva reaches maturity. 



Mature Larv.v. Length 1.1 inch : cylindrical, thickest from 4 to 8 ; on the 

 flattened ridges of each segment are many small, black, conical tubercles, each 

 giving a short fine hair (as d"^ ; the same form of tubercle prevails through the 

 last two stages, but they are more numerous in the final stage); on dorsum these 

 hairs are gray, on sides and beneath, white ; color light green ; feet and legs 

 pale green ; along base, from 2 to 13, a white band through middle of which 

 runs a red stripe, almost filling it, the ground below the stripe stained yellow ; in 

 one example, on segments 4 to 10 inclusive, was a small black patch to each 

 under the band, but in all others there was no trace of this ; head sub-globular, 

 a little depressed at top ; color green, somewhat lighter than the body, covered 

 with black tubercles, the same size as on body, with black hairs. (Fig. /, mag- 

 nified.) From fourth moult to pupation about five days. 



