of the White Mountains. 623 



white scales on the basal half below. Expanse of wings 

 1^-2 inches. 



The males and females do not dilfer, as Harris states ; 

 the primaries of the male are perhaps a little more pointed 

 at the tip than those of the female, but there is no differ- 

 ence in the markings, unless it be that there is usually 

 more marbling on the disk of the under surface of the pri- 

 maries in the females than in the males. 



Egg. Taken from body of living female ; pale yellow- 

 ish-green, nearly colorless ; spherico-ovoid, largest at base ; 

 with about 25 ribs, which are rather broad, prominent, 

 transversely wrinkled, slightly sinuous in direction, most 

 of them extending to the apex, and below nearly to the 

 centre of the base, and where they vanish, the surface is 

 well punctured and rugulose ; height, 25 inch ; diameter, ^'g 

 inch. 



Larva. Head brownish yellow, with three bands of 

 black spots on either side, which are little raised points, 

 giving rise, each, to a hair, the space between them being 

 brown ; the first is broadest, and follows the middle suture, 

 and half way down the side of the triangular suture ; the 

 second is separated from the first by the width of the lat- 

 ter, is parallel to it, of equal length, and slightly narrower; 

 the third is narrow, nearly linear, short, consisting of only 

 ten or twelve black dots, placed upon the middle of the 

 sides, directed horizontally, not parallel with the others ; 

 there is also a fourth, as short as the third and still smaller, 

 beneath, arising from in front of the first pair of legs, and 

 running at right angles to the third ; the triangular suture 

 is dark brown ; a dark dot just behind the antennae ; first 

 joint of antennse mammiform, dusky; second very short, 

 scarcely perceptible except by black color; third cylindrical, 

 twice as long as broad, squarely docked, reddish brown ; 

 labrum black ; mandibles reddish, black at tip ; maxillae 

 3-jointed, each successive joint smaller, dusky, the last 



