64 JOHN B. SMITH. 



though the secondaries are rather white than black banded. It finds 

 its nearest ally in tenuifascia, which is, however, much smaller, and 

 in other respects quite different. From fasciatiis it differs in that the 

 white band of the primaries is not nearly so prominent, nor is the 

 insect so well marked in any respects. In the pair before me the 

 female is paler and a trifle better marked than the male, and from 

 it the figure was made. 



Oncocnenii!!> exeiiiplaris n. sp. (PI. vi, fig. 8) — Ground color dark ashen 

 gray, made up of a mixture of black and white scales. Head more blackish in 

 front, collar with a black median line, patagise with black subniargins. Prima- 

 ries mottled, the maculation obscure, yet all the normal markings traceable. 

 Basal line single, black, preceded by a white shade. T. a. line broad, black, fol- 

 lowed by a white shade, both indefinite, diffuse, outwardly oblique, outcurved 

 between the veins. T. p. line geminate, the outer line marked only on thecosta 

 and toward the inner margin : the inner line distinct, narrow, black, even, gently 

 outcurved over the reniform and somewhat incurved below. A very evident 

 white line accompanies that last described. S. t. line very irregular, marked by 

 white scales, but chiefly defined by a blackish subterminal shade, in which are 

 a few more or less evident sagittate black dashes. Except at the apex, the ir- 

 regular terminal space is somewhat lighter than the rest of the wing. A series 

 of black terminal lunules at the base of the long fringes, which are blackish, 

 narrowly cut with white. There is a very indefinite and diffuse median shade 

 line. The claviforra is vaguely traceable, more by the centering of white scales 

 than by any defining line. Orbicular small, round, annulate with white, cen- 

 tered with blackish. Eeniform narrow, upright, black and white marked, fol- 

 lowed by a prominent white shade which extends to the t. p. line, and even 

 lightens the s. t. space for a short distance beyond it. Secondaries black, with 

 a broad median white shade, in which is a black discal lunule, the fringes white. 

 Beneath, all the wings black at base, the median space broadly white; on the 

 primaries a black band follows, the outer margin being white and blotchy; on 

 the secondaries the black band extends to the outer margin, the fringes being 

 white. Expands 25 ram. ; 1 inch. 



Hab. — Yosemite, Cala. 



A single male specimen only is before me, not in the best condi- 

 tion ; but with all the markings distinct. It is a very close ally of 

 pudo7-ata, but is smaller, of a clear gray, the t. p. line even instead 

 of crenulated, and the diffuse whitish hand is replaced by a promi- 

 nent white blotch beyond the reniform. There should be no great 

 difficulty in identifying this species. 



Oncocneinis iimbrifascia n. sp. — Head and thorax umber-brown_ 

 palpi paler beneath. Thorax a faintly reddish ash-gray, with brown powderings. 

 Primaries with basal space gray, powdered with brown ; median space dark 

 umber-brown. S. t. space gray at the t. p. line, brown powdered, the brown 

 gradually replacing the gray, so that the terminal portion of the wing is umber- 

 brown ; but more powdery and not so deep, and as even as in the median space. 



