130 PROCEEDINGS OF THE NATIONAL MUSEUM. 



Habitat. — Garfield County, Colorado, 7,000 feet; Gleuwood Springs, 

 Colorado, in .Inly; ()rcj»<)n. 



This species strongly resembles prrsiiasa in its general ai)i)('aiance; 

 but it is nuieli i)aler and the markings are better defined. The second- 

 aries in tht^ female are almost as light as those of pcr.siKfsa male. The 

 barpes of the male are unusually short and broad and the corneous 

 portion serving as cla8i)er is hardly as distinct as in the other species. 

 Tiie honk near to the upper angle is moderate in si/e and only a little 

 curved, while the process near the base is very short, stout, and i)ointed. 

 In leg structure the species resembles <iffUct<t, no essential differences 

 having been observ<'d. Four male and two female specimens form the 

 types, represented in the colle(;tion 11. S. National Museum, Kutgers 

 College, Dr. William Barnes, and Mr. J. Doll. 



ACRONYCTA PERSUASA Harvey. 



(Plates 111, lif;- H, a<liilt; Wll. li-j;. L'it, W'^a; Will. fij-'. 10, palpus; XXT, lif,^ 20, 



iiuilt< j>eu Italia.) 



Jpatcia pirKiKim Hakvicy, Bull. UnlT. Soc. Nat. Sci., IS?;"), II, j). 271.— IUiti.ku, 

 Ent. AiiuM'., 18S7, III, ]). iUt:=bntmona iinouiH^ 



Grouud color a deep bluish ash gray, heavily powdered with black 

 and with a more or less smoky suffusion. Head with a line below the 

 antennae and one on the vertex. Collar with a. black line above the 

 middle aiul the ])aitagiae margined MMth black. Primaries with all the 

 markings traceable; but all nu)ro or loss broken, and more or less 

 obscured by the smoky shading. Basal line geminate, black, usually 

 marked on the costa only. Transverse anterior line geminate, black, 

 outwardly obliipie, the lines well separated and ecpuilly <listinct. 

 Median shade line slender, oblique from the costa through the reniform, 

 thence almost stri|.ight to the hind margin. It is traceable in all the 

 specimens that I have seen, and distinct in most. Transverse posterior 

 lino geminate, the inuer portion of the line brown, the intervening 

 s])ace whitish, the outer lino black, lunulate and dentate on the veins; 

 it is scpiarely bent outwardly over the cell and not very strongly 

 incurved below. The subterminal line is whitish, irregularly dentate, 

 and more or less interrupted. There is a series of terminal dark 

 marks, beyond which the fringes are marked with blackish. There is 

 a black basal dash which reaches the transverse anterior line and a 

 black mark from the transverse anterior lino to the median shade. 

 Both of these are accomi)auied by smoky or black shadings which more 

 or less fill the submediau interspace to the nuMlian shade line. There 

 is a distinct black streak through the transverse posterior line to the 

 outer margin, above which there is a smoky shade extending nearly to 

 vein .i. Another shading beyond the transverse posterior line is 

 opposite the cell, and here we have a more or less triangular black 

 mark. The ordinary si)ots are large, the orbicular round or a little 

 oval: it is white or gray, centered with smoky, and outlined by black 



