18 



NEW SPECIES OF ONCOCNEMIS. 



By John B. Smith. 



Ill coutiuuation of the ^vork on the MoDOgTai)b. of the IS'octuida) by 

 Professor Eiley and myself, the followinguew species are found to occur 

 in the genus Oncocnemis : 



O. FASCIATUS, sp. DOV. 



Head, tliorax, and i^rimaries dull fuscous gray. Primaries with basal line single, 

 distinct, black. Basal space to t. a. line paler, more asben gray. T. a. line ratbea* 

 broad, single, black, outwardly oblique, making two large and not very prominent 

 outward curves. T. p. line single, marked at costa, making a strong outward curve 

 over reniform, tben strongly incurved, interrupted by the white transverse band, 

 asain distinct below the reniform, and with a slight inward curve to inner margin. 

 Claviform wanting. Orbicular rather small, round, uarrowlj^ outlined in black, 

 somewhat paler than ground color. Reniform large, not very well defined, white, 

 with a narrow fuscous crescent. Between reniform and t. p. line the ground color 

 obtains and gives a deceptive appearance of the reniform in the broad white band. 

 A narrow shade band crosses the outer part of the median space, distinct and black- 

 ish on costa, less marked below.^ A broad, white, transverse shade, over and includ- 

 ing the reniform, leaving a fuscous patch beyond that spot, inwardly limited by the 

 t. p. line, and almost'extending to thjs s. t. line. S. t. line marked only by a series of sag- 

 ittate black dashes, shading off into the white band. Terminal space of ground color. 

 A narrow, terminal, dark line. Fringes concolorous, fuscous, narrowly cut with darker 

 brown. A whitish line at base. Secondaries dull smoky brown at base, outwardly 

 limited by a black transverse band. Beyond this a broad white central band, the 

 outer margin again broadly black. Fringes white, basally fuscous. Beneath, both 

 pairs of wings fuscous gray at base, outwardly limited by a black band ; this is fol- 

 lowed by a broad white band, the margins again broadly black. Head and thorax 

 concolorous with basal space of primaries, abdomen a trifle paler. 



Expands 1.1 inch 27.5™"°. 



Habitat, Nevada County, California. (Sept.) 



A single $ in the Coll. U. S. N. Mus. (from Dept, Agric, Koebele, collector). 



The species is strongly marked and unlike any heretofore described. 

 The common white transverse band is characteristic and renders the 

 species easily recognizable. Its general appearance seems to refer it 

 most nearly to the yellow underwinged group. 



O. TENUIFASCIA sp. UOV. 



Head, thorax, and primaries dull fuscous brown, the ordinary macuhition of prima- 

 ries distinct, though not prominent, blackish. Basal line present, black, with a nar- 

 row, following pale line. T. a. line distinct, oblique sinuate, black, preceded by an 

 equally distinct pale lino. Practically the lino is geminate, the inner portion re- 

 duced to a few dark scales defining the intermediate pale sliade. T. p. line distinct, 

 geminate, inner line black, distinct, outer line punctiform, the intervening space 

 white, the white line becoming broader toward the inner margin. As a whole, the 

 lino curves outwardl^'^ over the reniform, and nearly straight below vein *2. Clavi- 

 form distinct, black margined, concolorous. Orbicular small, round, black ringed, 

 with an inner white annulus. Between the ordinary 8j)ots the cell is blaekish, and 

 from this ])oint the narrow median shade runs parallel with and close to T. p. line to 

 the hind margin. Reniform rather small, narrow, normal in shape, not very dis-, 

 tinctly outlined, first black margined, then with a paler annulm, thecenter of ground 

 color of wing. S. t. line irregularly, but not strongly dentate, narrow, whitish, iu- 



