21 



band shaded on both siilcs with ohvaceous-brown and crossed by the usual 

 black subapical dashes ; dark terminal dots on both sides of veins ; fringes smoky 

 with darker median line. Secondaries pale smoky at base with much heavier 

 smoky shading terminally, a fairly distinct angled postmedian line, somewhat 

 emphasized on the veins by dashes and separated from the darker terminal 

 shading by a narrow pale band; fringes pale, checkered with smoky-bown. Be- 

 neath primaries pale smoky crossed by two sinuous subterminal lines and shaded 

 with gray along costa and at apex; secondaries whitish, sprinkled lightly with 

 smoky brown, with the postmedian line of upper side very distinct and with 

 traces of a paint parallel subterminal line; terminal dark line on both wings; 

 fringes pale, checkered. Expanse 11 mm. 



n.\BiT.\T: Palmerlee. Ariz.; Huachuca Mts., Ariz. 3 c5 ■ Types, 

 Coll. Barnes. 



We have two specimens before us, one a 9 in the Barnes Coll. 

 from Vineyard, Utah (Sept. 1), the other a 3 from Stockton, Utah 

 (Oct. 12) in the American Museum material ex Coll. Grossbeck which 

 seem to represent a new species, characterized by its light gray color 

 and pale secondaries, the underside of which is almost imtnaculate 

 white ; we also possess a worn and stained 3 from Glenwood Spgs., 

 Colo. (May 1-7) which seems to belong to the same species and may 

 represent a spring generation. The type of Uncus is essentially that 

 of the frigidata group. The following description is drawn up from 

 the 9 specimen on account of its more perfect condition ; we might 

 note however that the palpi in the 9 , owing to abrasion, give the 

 appearance of being shorter than in the S which has the palpi in 

 good condition but the wings rather worn ; there seems, however, no 

 doubt as to the specific oneness of the two specimens. 



Hydriomena obliquilinea sp. nov. (PI. Ill, Fig. 11). 



Palpi rather short; thorax dark gray with faint ochreous tinge; primaries 



gray much obscured by smoky, especially in the antemedian and costal areas ; mac- 



ulation ratlicr indistinct with the exception of an oblique, dark, rather broad line 

 (line 1) extending from costa near base to inner 

 margin about one third from base, bordered inwardly 

 with whitish; a faint wavy median line (line 3), par- 

 allel to this first line, reaches inner margin well 

 before inner angle, the included space being slightly 

 darker than the basal area, and crossed by an indis- 

 tinct waved smoky band, the inner margin of wing 

 in this area heavily streaked with blackish ; the 

 '"^' ' median area is defined outwardly by a dark line, 



Uncus of H. ohhqmhnca ^^.^^ ^^^ shaded inwardly with white at costa and 



above inner margin, strongly oblique outwardly to vein S then indistinct but 



