ONCOCNEMIS. 175 



and grey streaks in the interspaces, a slight oblique dark shade from 

 apex and another from tornus. Hind wing pale fuscous with a 

 slight reddish tinge, the basal area paler; the underside grey with, 

 dark irroration and a small discoidal spot. 



Hah. U.S.A., Colorado desert. Exp. 22-25 millim. This species 

 is unknown to me ; figured from drawing from type in Coll. J. 

 B. Smith. 



2301. Oncocnemis poliochroa, n. sp. (Plate C. fig. 20.) 



Head and thorax grey slightly tinged with ochreous and mixed 

 with black ; frons with black l3ar ; tegulae with black lines near 

 base, at middle, and near tips ; tarsi banded with black ; abdomen 

 pale ochreous tinged with brown. Fore wing grey slightly tinged 

 with ochreous and thickly irrorated with black ; a black streak iu 

 base of cell and small subbasal black spots below costa and cell ; 

 antemedial line obsolescent, with black spot at costa and another on 

 its inner side below the cell, angled outwards just above vein 1 ; 

 claviform whitish irrorated with black and defined by black, elon- 

 gate, acute at extremity ; orbicular and reniform moderate defined 

 by black, the former elongate elliptical and confluent with the latter 

 at middle ; a sinuous brown medial line, oblique and blackish at 

 costa ; postmedial line with black spot at costa, oblique to vein 6, 

 then minutely dentate, below vein 4 incurved to lower edge of 

 reniform, then oblique, some pale points beyond it on costa ; the 

 veins of terminal half slightly streaked with black ; subterminal 

 line formed of small whitish dentate marks with wedge-shaped black 

 marks before them and short black streaks beyond them; a terminal 

 series of small black lunules ; cilia whitish mixed with fuscous and 

 intersected with fuscous. Hind wing whitish tinged with ochreous ; 

 the veins dark ; the terminal area fuscous, broad at costa, narrowing 

 to a point at tornus ; the underside with the costal area white 

 irrorated with black, a small discoidal lunula showing through to 

 upperside and postmedial series of short streaks on the veins. 



Hah. Canada, Alberta, Calgary ( WoUey-Dod), 5 c? > 1 $ type. 

 Exj). 36 millim. 



2302 Oncocnemis Colorado. (Plate C. fig. 21.) 



Oncocnemis Colorado, Smith, Ent. News. Philad. i v. p. 100, pi. vi. f. 5 (1893) ; 

 id. Cat. Noct. N. Am. p. 161. 



S . Head and thorax white slightly mixed with brown and 

 fuscous ; frons with black bar ; tegulte with black line near base 

 and black tips; tarsi banded with black; abdomen whitish suff'used 

 with pale rufous. Fore wing whitish suffused and irrorated with 

 reddish brown ; subbasal line represented by a black point below 

 costa, the antemedial line by an oblique striga from costa ; a short 

 fine black streak in base of cell ; a strong black streak below the 

 cell to the claviform, which is white, elongate, defined by black 

 and with slight dark streak in centre, acute at extremity and 



