87 



here approximate. The primaries are more whitisli at base; in their sliape 

 resembling Cucullia. White costal ante-apical dots are noticeable. Hind 

 wings blackish fuscous, paler at base, with whitish fringes. Beneath, pale 

 fuscous, powdered along the margins with gray; the white fringes showing 

 distinctly and on costal region of primaries two pale ante-apical dots are 

 prominent. Collar with a fine black line at base. Thorax behind with a 

 mossy tuft outwardly blackish. Abdomen untufted. 



Expanse, 35 m. m. Oregon, Mr. Edwards/ No. 5995. 



The type of C. occata, has the lobes of the collar slightly I'aised 

 in front. Fresh specimens do not show this character, the collar 

 being perfectly plain. Cleojthana may then be restricted to this 

 species from Oregon; a specimen from California (in too iudiiferent 

 condition to make out) indicates a distinct form. I must, then, 

 refer C. occata to Oncocnemis. In this latter genus we have six 

 species in the check list. A ? specimen of the subsequently de- 

 scribed 0. riparia has occurred in the vicinity of Buffalo. A speci- 

 men numbered 27, sent by Mr. Mead from Colorado, differed from 

 the type of Chandleri by the diffuse band of the hind wings which 

 is more distinctly limited in the figured type. In the Eastern 

 specimens the s. t. line is more distinctly marked with pale dashes. 

 The female 0. riparia taken about Buflalo, has the hind wings 

 exactly like this second Colorado specimen, and beneath the dotted 

 line is shown as in Chandleri. The course of the transverse lines 

 seems identical, so far as they can be made out, so that the differ- 

 ence between the two forms is limited to the more distinctly black 

 marked primaries in Chandleri, and the greater j)romiuence of the 

 s. t. line in riparia, the female of which wants the black streak 

 ending in the claviform shown by two males sent me by Mr. Fred. 

 Tepper. As I now observe that the character of the hind wings 

 given by Mr. Morrison is not essential, there is greater probability 

 that we have to do with a single species subject to some modifica- 

 tion over so wide a range of territory. 



