OXCOCSEMIS. 173 



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

 apex and another from torn us. 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. E.vp. 22-25 millim. This species 

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

 B. Smith. 



230 1 . Oncocnemis poliocliroa, n. sp. (Plate C. fig. 20.) 



Head and thorax grey slightly tinged with ochrcous and mixed 

 with black ; frons with black bar ; tegultB 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 in 

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

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

 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 ( Wolley-Dod), 5 c? , 1 § type. 

 Exp. 36 millim. 



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



OncLicmmis Colorado, Smith, Ent. Kews. Philad. iv. p. 100, pi. vi. f. 5 (1893); 

 ill. Cat. Noct. N. hva. p. 161. 



J . Head and thorax white slightly mixed with brown and 

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

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

 with pale rufous. Fore wing whitish suff'used 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 



