EVERES ARGIADES. 81 



border on the middle segments ; ground colour pale green ; above the 

 flange, two faint, dark, wavy, longitudinal lines; sometimes very faint, 

 pale, lateral stripes are exhibited, which slope from above backwards ; 

 the dorsal vessel is dark green ; on this, as well as on the hinder 

 margins of the segments, on the longitudinal lines, and above and 

 beneath the flange, there are thickly-set, brown, raised dots; the 

 remaining portions of the segments carry whitish dots ; some of these 

 also lie between the brown ones, and all carry short hairs ; on each 

 side of the dorsal vessel is a row of somewhat larger bristles ; the 

 flange is onty distinctly whitish, with reddish-brown border on the six 

 middle segments. The chief colour aberrations are : (a) The flange 

 quite without any white or reddish colour, (b) The dorsal vessel dark, 

 brownish-red ; the whole flange somewhat paler ; the rest of the body 

 greenish, with a reddish tinge. Hybernating (fullgrown) larva : Dirty 

 reddish, faintly greenish on the anterior segments, with very faint, 

 oblique, whitish, broken lateral stripes (Zeller). North American 

 form (comyntas). Youny larva : length -05 inch; shape rather cylin- 

 drical; colour yellowish, excepting a few white tuberculated points on 

 dorsum, arranged in two longitudinal rows ; a similar row at base of 

 body ; from each of all these points arises a long, curved, white hair ; 

 head nearly as broad as second segment, black, shining, retractile. 

 After first moult: length -08 inch; onisciform, flattened, the dorsum 

 flat at top, sloping towards base of body ; colour greenish ; the whole 

 surface irregularly dotted with black ; and from most, but not all, of 

 the dots come white hairs, those on dorsum curved back, those nearer 

 base curved partly downward and partly back ; head obovate, long and 

 narrow, smaller in proportion to 2nd segment than at last stage, and 

 partly concealed, even when active, in 2nd segment ; colour black. 

 After second moult: length -12 inch; broader and flatter than before ; 

 on each side of the narrow dorsal ridge a slightly raised edge, caused 

 by the tubercles ; at the base of the body a fold, and the hairs from 

 this and the ridge are longer than elsewhere ; whole surface finely 

 pilose ; colour green, but with a rusty tint caused by the numerous 

 reddish points ; above the fold these take the form of a line or slight 

 stripe ; at this stage the division of the segments becomes distinctly 

 apparent. After third moult : length -20 inch ; colour clear apple- 

 green, the crests of the dorsal ridge, and also the fold at base, whitish ; 

 on either side of the white line thus caused at the fold, on several of 

 the segments after the middle, but not on the two last, is a reddish 

 line ; there is also an indistinct double oblique line of pale green on 

 side of each segment ; head as at last stage. After fourth moult : 

 length -36 inch, greatest breadth -10 inch ; onisciform, high anteriorly, 

 the back rounded and sloping to last segment, which is much flattened ; 

 both ends (when the head is retracted) rounded equally, or nearly so ; 

 each segment rounded dorsally ; the whole upper surface covered with 

 fine white hairs ; colour emerald-green, with very many yellow tuber- 

 culous points ; along middle of dorsum a deep green stripe in a 

 depression ; at base a whitish line edged with vinous on three or four 

 segments after the middle ; underside and legs pale green ; head -025 

 inch in breadth, longer than broad, obovate, shining black, seen 

 through the 2nd segment when half protracted (Edwards, Can. Ent., 

 viii., p. 203). 



Larva. — First instar (July 30th, 1904): When newly-emerged, the 



