DESCRIPTION OF THE PREPARATORY STAGES OF 



COLIAS HARFORDII, H. EDWARDS. 



9 BARBARA. H. ED\A/. 



Bv W. H. Edwards. 



Egg. — ShTipe o{ Burydice, Eurythe7ne, Philodicc : slender, fusiform, 

 the base broad, top sloping to a round point ; the sides ribbed verti- 

 cally, the space between the ribs crossed by numerous horizontal striae; 

 color yellow-green, in a short time changing to crimson. Duration of 

 this stage about four days. 



Young Larva. — Length .12 inch ; cylindrical, a little thickest on 

 anterior segments; color brown-green ; each segment four or five times 

 creased transversely, and on the ridges thus caused are fine black 

 points, with each a short black hair ; scattered among these are club- 

 shaped white hairs ; head rounded, scarcely at all depressed at top, 

 thinly covered by black tubercles, and hairs which are longer than 

 those on body. Duration of this stage about three days. 



After first Moult: length .16 inch; same shape, and marked with 

 points as before ; color dark green; along base a faint yellowish stripe; 

 head rounded, green, the points and hairs black. Duration of this 

 stage about four days. 



After second Moult : length . 28 inch ; dark green ; the basal stripe 

 more distinct, whitish; before end of the stage some larvae show traces 

 of orange in this band. To next moult about three days. 



After third Moult: length .4 inch; same shape; color dark green; 

 the band pure white from 2 to 13 inclusive; in the first part of 

 the stage it is stained yellow in middle, later the yellow has changed 

 to red ; head a shade lighter than body. To fourth and last moult 

 about three days. 



After fourth Moult: length .55 inch ; in three days reaches maturity. 



Mature Larva. — Length i.i inch; greatest breadth .17 inch; slen- 

 der, cylindrical, thickest from 4 to 8 ; each segment except the 

 extremes creased transversely six times, the intervening ridges flatten- 

 ed ; on these are many fine conical black points, each giving a short 

 hair ; on dorsum the hairs are gray, on sides and beneath white ; along 

 base, from 2 to 13 inclusive, a continuous white band, through mid- 

 dle of which runs a stripe of vermillion, and the white below this is 

 stained yellow ; under side dark blue-green ; feet and legs green : head 

 sub-globular, a little depressed at top, thickly covered with black tu- 

 bercles the size and shape of those on body, each with a black hair ; 

 color of head lighter green than body; ocelli emerald. 



From fourth moult to pupation about five days. 



Chrysalis. — Length .75 inch, greatest breadth .18 inch, depth .2 

 inch ; compressed laterally, the thorax prominent ; the head-case 



