420 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxii. 



veins 3, 4, G, and 7. The median vein is white, and below it, in the 

 basal space, is a black shading which becomes diffuse inferiorly. Clav- 

 iform black ringed, of good size, concolorous. Orbicular oblique, oval, 

 often irregular, varying in size, complete if small, open to the costa if 

 larger, outlined in black, narrowly annulate with white, center yellow- 

 ish or gray. Eeniform upright, rather narrow, lilling the end of the 

 cell completely, incomplete above and below, narrow kidney- shaped, 

 defined by black scales and a narrow white annulus, centered with yel- 

 low. Secondaries white, with a smoky terminal line from which a faint 

 dusky shade may extend a short distance inward. Beneath, x^rimaries 

 smoky with a dark discal spot and white veins; secondaries white, only 

 a little ijowdery, with a smoky outer line and a small discal spot. 



Expanse, 27 to'33 mm. =1.08 to 1.32 inches. 



Habitat. — Denver, Colorado; Foothills (Bruce); Calgary, Canada, 

 July 23, August 29 (Dod). 



Seven specimens, all males. The three Denver specimens are from as 

 many different collectors, and Mr. Bruce probably collected his example 

 near Golden. 



The species resembles my Jtavidens, and I had associated the two, 

 until the occurrence of females of the older species caused a reexamina- 

 tion of the series. In the new form the general color is lighter, the 

 contrasts are much greater, and the secondaries are pure white. 



Type.— Gat. 1^0. 4.791, JJ.Q.^M. 



'■/. CARNEADES NEVADA, new species. 



Ground color ashen gray over fuscous. Head with an indefinite 

 dusky frontal line, palpi brown at the sides. Collar gray tipped, with 

 a black transverse line above the middle and below which there is a 

 paler fuscous shading. Thorax squared, large, vestiture dense, mostly 

 flattened hair, tuftings not well marked, partagia defined. The pri- 

 maries appear somewhat strigate, owing to the absence of distinct 

 transverse maculatiou, the paler median vein, and the tendency to 

 define the other veins. Basal line marked only by a pale interruption 

 of a black basal shade, which is not prominent and does not cross the 

 basal space. Median lines marked on the costa only, though the loca- 

 tion of the transverse anterior line is marked by the inception of the 

 claviform, and the transverse posterior line may be found by careful 

 search; but practically both are obsolete. Sub terminal line obsolete. 

 There is a series of black terminal spots from which blackish rays 

 extend into the interspaces. A pale line at the base of the fringes. 

 Claviform moderate in size, concolorous, outlined in black, pointed at 

 the tip. Orbicular oval, elongate, decumbent, narrowly white-ringed, 

 tending to an outward extension toward the reniform. Reniform small, 

 broadly lunate, outlined 'by black scales, annulate with whitish. A 

 somewhat paler shading extends obliquely from beyond the reniform to 

 the apex, and a more indefinite lighter shade extends through the sub- 



