426 PBOCEEDINGS OF THE NATIONAL MUSEUM. vol.xxii. 



give a dull, dark, smoky brown appearance. Head and thorax immac- 

 ulate. Yestiture, mixed with scales and flattened hair, the thoracic 

 divided crest and posterior tuftings distinct, patagia relieved. Pri- 

 maries with transverse maculation obsolete or barely traceable. Basal 

 line marked by smoky spots on the costa only. Transverse anterior 

 line, when traceable, almost upright, outcurved in the interspaces, 

 irregularly so in the submedian interspace. Transverse posterior line, 

 when traceable, bent over and close to the reniform, then oblique to 

 the margin, even and inwardly diffuse. Subterminal line irregular, 

 usually marked by yellowish scales and the somewhat darker terminal 

 space ', occasionally also by iDreceding darker scales ; rarely it is entirely 

 wanting. A series of small terminal lunules, followed by a yellow line at 

 the base of the fringes. Claviform small, narrow, pointed, usually well 

 and completely defined; sometimes with a filling of yellow scales. Eeni- 

 form irregular, varying from almost round to obliquely oval, and in size 

 from very small to quite large. It is defined by black scales, within 

 which is a yellow annulus and the center is also a little powdered; in 

 the smallest spot the center is entirely yellow, simply because the 

 annulus takes up all the sj)ace inside the black ring. Eeniform mod- 

 erate in size, kidney- shaped, sometimes a little enlarged inferiorly, and 

 extending below the cell. It is defined by black scales, within which 

 is an annulus of yellow scales. The center of the spot is lightened 

 superiorly by yellow scales and darkened inferiorly by leaden gray or 

 blackish. Secondaries whitish, in the male with a narrow soiled outer 

 border which is inwardly diffuse; in the female with a decided, smoky- 

 yellow tinge, the dusky outer border broader. The veins are dusky 

 marked, and there is a narrow, smoky, discal lunule. Beneath whitish, 

 powdery, with a more or less indefinite common outer line and a discal 

 spot on all wings. 



Expanse, 37 to 40 mm. =1.48 to 1.60 inches. 



Habitat. — Glenwood Springs, Colorado, August (Br. Barnes). 



One male and 5 females, all in fair condition. The species differs 

 from its nearest allies in the somewhat well-marked veins and the 

 obscurity of its ground color. There are several other points of differ- 

 ence, making up altogether the sum of a good species belonging to the 

 pitychrous series. 



Type.— Cut. No. 4805, U.S.F.M. 



i6. CARNEADES TERMESSUS, new species. 



Ground color luteous gray, with a very even powdering of fine black 

 scales that gives the insects a dusty or ashen appearance. Head and 

 thorax immaculate, palpi rusty yellowish in front. Thoracic yestiture 

 consists of only slightly flattened hair, patagia not relieved, anterior 

 crest feebly, posterior tuft distinctly evident. Primaries with the 

 markings scarcely darker than the ground color, so that at a little dis- 

 tance the wing seems immaculate. Basal line geminate, broken, 



