188 GUOTE & ROBINSON. 



superposing <a blackish shade streak, and the outer larger and corres- 

 ponding to the reniform spot of the upper surface. A subterminal 

 transverse, blackish band, widening on costa ; terminal space of a 

 darker ochreous than the wing basally ; fringes, as on upper surftice. 



Secondaries, yellowish testaceous, with the extreme base and inter- 

 nal margin more or less shaded with blackish scales. A large, semi- 

 lunate, black, discal spot. A wide, black border, distinctly limited in- 

 wardly, and interrupted centrally on internal margin by the pale 

 ground color, which here allows a portion of a broken, black, terminal 

 line to be seen which is elsewhere lost. Fringes, very pale. Beneath, 

 the ornamentation of the upper surface is repeated, but much paler; 

 the terminal band is largely reddish ochreous, distinctly limited in- 

 wardly, and similarly colored scales extend more narrowly along costa. 

 The terminal band becomes blackish inferiorly. 



Expame, 1.20 — 1.50 inch. Length ofhody^ 0.50 — 0.70 inch. 



Hnhitat. — Illinois, (Mr. C. V. Riley) ; Colorado Territory, (Mr. Jas. 

 Ridings). 



The specimen from Colorado Territory is paler, more ochreous, and 

 wants the olivaceous tinges of the Illinois specimens. The bands on 

 the primaries above are fainter and paler, so that they are im promi- 

 nently relieved by the ground color of the wing, while the blackish 

 reniform spot, included by the first band on the disc, is on the other 

 hand, better defined. A smaller and slighter species with the prima- 

 ries less prominently produced at the apices than the common H. um- 

 brosus. Grate. Whether this latter be identical with the European 

 H. armigera, Iliibn., sp., or not, is as yet not satisfactorily ascertained. 

 All our specimens of the former are larger, and diff"er in slight details 

 from our single European specimen of 11. armigera. While this lat- 

 ter seems of rare occurrence in Europe, its representative is here ex- 

 tremely common and noxious to vegetation. 



11. phloxiphaga, as its name indicates, feeds in the larva state on 

 Phlox. It has been described in its diff'erent stages by Mr. Riley as 

 above cited. This species is closely allied to the European II. dipsa- 

 cea, which it apparently represents in our fauna. 



ARCHIEARIS, Iliihn. 

 Two species of this genus are known from our Territory : — 



1. Archiearis brephoides. 



Anarta Brephoides, Walker, C. B. M. Lep. Ilet. Tart xi, Noct. p. 702, 1857, 



id. Grote, Proc. Eiit. Soc. Phi]. Vol. iii, p. 74, 186i. 

 Archiearis rcsoluta, Zeller, Stett., Eut. Zeit. 24 Juhr., j). l-'5i), T:if. 2. fig. 1, 



1863. 



