22;"i 



brown, a faint discal dot. Hind wings marked as tore wings, bid with- no 

 discal dot or lines within the middle of the wing. Beneath of the same color 

 as above, but rather clearer ochreous, with discal dots on both wings. Fore 

 wings with two costal brown spots. No inner lines, the outer (extradiscal) 

 line on outer third of wing broad and sinuous, with another fainter line mid- 

 way between it and the edge of the wing. On the hind wings, the extradiscal 

 line is broadly angulated in the middle of the wing, with a fainter line mid- 

 way between it and the outer cAixe of the wing. 



Length of body, <?, 0.45, 9, 0.42: of tore wings, <?, 0.57, 9, 0.46*; 

 expanse of wings. 1.10 inches. 



Mountains of Colorado, August 12-29 (Lieut. W. L Carpenter); 

 twelve miles below Montezuma, Colo., on Snake River, Middle Park, eleva- 

 tion of 9,000 or 10,000 feet, August 7 (T. L. Mead). 



EUFIDONIA, gen. nov. Plate 2, fip 9. 



Tephro8ia Walk, (in part), List Lep. Het. Br. Mus., xxi, 407, 1.860. 

 Fidonia Walk, (in part), List Lep. Het. Br. Mus., xxiv, 1034, lMtt. 

 Minot, Proc. Bost. Soc. Nat, Hist., 83, 1869. 



Front of the head rather full, the clypeus being full, much more convex 

 than in Fidonia or Perconia, but hardly more so than in Ematurga. Palpi 

 unusually short, scarcely projecting beyond the front, the third joint minute. 

 Antenna? with longer pectinations than in Fidonia : in female simple. Fore 

 wings triangular, much as in Ematurga, the outer edge being less oblique 

 than in Fidonia. Hind wings produced a little toward the apex, somewhat 

 as in Ematurga, but not scalloped or square and sinuous as in Fidonia. The 

 venation of this genus is remarkable ; there being six instead of five sub- 

 costal venules, as in Fidonia and Ematurga. The first subcostal venule is 

 one-fourth the length of the wing, and is free; the second subcostal unites 

 with the subcostal vein at the origin of the fifth subcostal, forming a short 

 broad cell. Otherwise, the venation is as usual. Hind legs with long stout 

 tibiae and short tarsi, about half as long as the tibia 1 . Coloration much as 

 in Ematurga, but the ground-color is white. The single species known is of 

 moderate size, much larger than those of Fidonia and smaller than Ematurga. 



This genus, which very nearly approaches Ematurga in the form of the 

 wing, and also closely resembles Fidonia, differs from both in the presence of 

 six instead of five subcostal venules, the first being long and free. Tn the 

 29 P H 



