2 II.I.USTIJATIONS OF UXFIGURED LEPIDOPTEKA. 



orange at base; the white extends nearly half way to apex. Thorax, above, 

 presents generally the same color as wings, and is covered with grayish hairs ; 

 beneath it is almost pure white. Legs covered with white hairs, shading into 

 gray at ends. Abdomen, above, same color as wings, the blue disappearing 

 toward end, where it is replaced by deepening gray ; underneath white, shad- 

 ing into yellowish gray at end. 



Upper side of fore wings a deep rich purplish blue, with some lustre; a 

 large discoidal spot of the original ground color but inclining to blackish ; the 

 base very slightly dusted with blachish gray scales; the costa edged with 

 blackish gray, almost linear over discoidal cell, and broadening toward apex, 

 then extending down hind margin, of varying width, and covering one third 

 of marginal area; inner margin without any border. Hind wings: ground 

 color same as fore wings; inner margin light gray; costa and hind margin 

 with a linear edge of blackish gray, inside of which, on the hind margin, is a 

 fine thread-like line of white, broadening somewhat toward anal angle ; inside 

 of this is an almost imperceptible shading of dark blackish gray, bordering 

 the ground color; two thread-like tails from termination of submedian nerv- 

 ure and first median nefvule, the former more than thrice the length of the 

 latter, blackish gray, very slightly edged and tipped with white ; between 

 these tails the dark shading inside of white line broadens into a dark spot, 

 and this broadening is repeated below the submedian nervure, but in less 

 degree ; at anal angle is an orange spot of small size, bordered at top with 

 white, and bearing a few light blue scales at lower edge. 



Beneath, both wings are light gray with slight intermingling of whitish 

 scales, and near base a slight shading of darker gray, which latter is wanting 

 in some specimens. The costa of the fore wing is edged with orange near 

 base about one quarter the distance to apex ; edge of hind margin with a deli- 

 cate line of dark brownish gray ; the dark edging which appears on upper 

 side and occupies one third of marginal area, manifests itself underneath by 

 a very slight yellowish tinge, scarcely perceptible on the gray background ; 

 on the inner edge of this, one sixteenth inch from margin, is a transverse 

 stripe of darkish gray elongated streaks extending from the costal border to 

 the lower median nervule, bordered on each side with lighter gray, and always 

 very indistinct, imperceptible on some specimens ; inside of these, and one- 

 third the distance from margin to base is a series of more or less distinct 

 transverse streaks extending from costa to lower median nervule, bordered 

 with white or very light gray on the outside, and with orange on the inside, 

 the orange being nearly absent at upper part near costa, but becoming more 

 prominent below ; this line is the prominent feature of the markings ; within 

 this and parallel to it is a line of very indistinct darkish transverse streaks 

 extending to inner margin. ( )n the edge of hind margin of hind wing is a 

 delicate line of dark brownish gray, bordered on inner side with white, or very 

 light gray; within this and one sixteenth inch from margin is a line of nearly 

 semicircular darkish gray lines extending from costa to inner margin, occa- 

 sionally with a few orange scales enclosed and bordered with a little lightish 



