62 WM. H. EDWARDS. 



sometimes terminating a little below the lower outer corner of the dis- 

 cal bar but usualy curving around the bar and separated from it, and 

 even reaching the sub-costal nervule, but in no case forming a continuous 

 stripe with the bar as is often seen in the two allied species; costal 

 edge specked with black ; secondaries usually immaculate but occa- 

 sionally showing small marginal black spots on the nervules; fringes 

 of both wings white, black at tips of the nervules. Under side white, 

 the apex and apical portion of the hind margin yellpw, between which 

 color and the orange spot is a pinkish space, all much obscured by 

 greenish brown scales ; the orange spot reduced and paler ; costal 

 margin pinkish, thinly covered with small brown spots ; on the arc a 

 bent bar nearly bisected; secondaries have the nervures for one-third 

 the distance from base orange, beyond to margin yellow ; the surface 

 thickly covered with irregular patches of greenish brown on which are 

 sprinkled yellow scales. 



Body grey-black above, beneath, thorax white, abdomen yellowish ; 

 the outer portion of the orbits of the eye orange; legs whitish, the fe- 

 mora orange ; palpi furnished with intermingled white and black 

 hairs; antennae orange at base, grey-brown above, grey below; club 

 black tipped with yellow. 



Female. — Expands 1.1 inches. Upper side bright lemon-yellow ; 

 the orange spot as large as in male, paler, replaced by yellow next 

 the apical border; sometimes, however, this yellow space is divided 

 into spots edged by black scales, imitating the usual markings of Sara ; 

 the discal bar as in male but limited by subcostal nervure ; fringes yel- 

 low, black at tips of nervules ; under side yellow, marked as in the male. 



From 22 specimens, 10 % , 12 $ , taken by Mr. Mead, on the 9th 

 10th and 12th of June, 1871, in the pine woods of the mountains im- 

 mediately surrounding the South Park, at Fairplay, Colorado. The 

 species was not seen elsewhere. It was swift of flight and easily alarmed 

 when it became very difficult to capture. In this respect and in its 

 limited locality it offered a strong contrast to A. Ausonoides, which 

 was found in all situations throughout the Territory. 



This species may be readily distinguished from Sara by its size and 

 by the far greater degree of mottled surface on secondaries ; also by 

 the sinuosity of the discal bar and the curvature and arrangement of the 

 stripe from margin ; the black border is proportionately narrower at apex, 

 is continued down the margin without interruption and is very sharply 

 serrated throughout. Nearly the same differences are found between 

 Julia and Reakirtii, though some individuals of this last species have 

 the secondaries as densely mottled as in Julia and similarly. In 



