20G • WM. n. EDWARDS. 



the outer one irregular, wavy towards inner margin, sliaded on its 

 inner side ; the other, nearer base, rather zigzag than wavy ; some fine 

 streaks on basal area; the hind margin ashy brown, streaked with dark 

 ferruginous; showing four black eylets, small, equal, placed near the 

 edge of the wing, in pairs on the upper median and next upper inter- 

 spaces, each with a plumbaginous streak across the marginal side and 

 through the middle, but not reaching quite across ; irregular streaks or 

 slight patches of dull silver on the interspaces both toward outer and 

 inner angle; the margin next inner angle edged with ferruginous. 



Body above fuscous, beneath gray, the abdomen buff; legs gray; 

 palpi gray, with black hairs in front; antennae fuscous, imperfectly 

 annulated with whitish; club fuscous above, russet below. 



Female. — Expands 1.7 inch. Both wings russet on disk, primaries 

 most brightly, the margins fuscous, as is also costal edge of primaries ; 

 on secondaries the eylets of under side are indicated by small dark 

 fuscous spots. Under side as in the male. 



From Arizona and New Mexico, collected in 1874, by Mr. H. W. 

 Henshaw, of the Wheeler expedition, in honor of whom I name the 

 species, and in 1875, by Lieut. W. C. Carpenter. 



This species is closely allied to the much smaller E. Gemma, oi the 

 Eastern States. 



Thanaos Alplicus, n. sp. 



Male. — Expands 1.1 inch. Upper side dark brown; primaries 

 crossed by a series of short black streaks, beyond the disk, run- 

 ning with the interspaces; on each of the two of these next costa 

 a white point; along hind margin an indistinct series of black dots. 

 Secondaries immaculate. 



Under side of primaries dark brown with a silky gloss; the white 

 dots repeated. Secondaries dull brown, dusted with whitish scales, 

 and crossed on the disk by a broken row of whitish indistinct small 

 spots, and near the margin by a similar row that quite crosses the 

 wing. 



From two examples taken in New Mexico, by Lieut. W. C. Car- 

 penter, in 1875. 



Ilcsperia Conius, n. sp. 



Male. — Expands 1 inch. Upper side dark glossy brown ; primaries 

 have three pure white, small, equal spots in a vertical row next costa 

 half way between cell and apex; and an oblique row of four minute 

 spots back of and below the cell, the uppermost one beyond the costal 

 row, in the direction of the apex ; secondaries immaculate ; fringes 

 short, fuscous. 



