62 TOETEICID^. 



scales aboA'^e the shining white ocellated spot^ which contains two or more black streaks or 

 spots; the cilia white, irroratecl with fnscous. Hind wing pale brownish grey; vein 4 

 present. 1 (^,2 $. Expanse of wings 18 millims. 



Mount Shasta^, kc, California, August and September 1871. 



Semasia pallidicostana. (Plate LXXIV. fig. 6.) 



Palpi short, white, clothed to the apex ; head white j thorax white, somewhat tinged with 

 grey posteriorly ; antennae greyish. Fore wings — with the costa slightly arched ; apical margin 

 scarcely concave below the apex — olivaceous gTey; milky white along the costa, with some 

 fuscous-grey (sometimes pale brownish) oblique streaks beyond the middle ; an ocellated spot 

 above the anal angle, lined with sublustrous grey, narrowly on the outer, widely on the inner 

 edge, with two broken black streaks across it. Hind wings brownish grey, the veins and 

 margins more darkly indicated; vein 4 present; cilia whitish grey. 1 cJ, 1 ? . Expanse 

 of wings 17 millims. 



May and June 1871, Sonoma and Lake Counties, California. 



Allied to the " Anchylopera " striatana of Clemens, which is the " Paedisca albicepsana " of 

 Walker, but wanting the white middle streak along the cell. 



Semasia infuscana. (Plate LXXIV. fig. 7.) 



Head cinereous^ sometimes brownish above : palpi projecting about the length of the head 

 beyond it ; cinereous : antennae pubescent in the male. Fore wings — more than twice as 

 long as wide ; apical margin oblique, slightly indented in the middle — cinereous, much clouded 

 with brownish fuscous, especially about the costal half of the wing, the line of demarcation 

 being waved or angulated ; the pale, almost obsolete ocellated spot contains a few black scales, 

 and is preceded by a triangular fuscous-brown shade on the dorsal margin ; the apex and 

 upper half of the apical margin brownish, partly obscured by a fuscous shade extending 

 through the cilia. Hind wings pale fuscous; cilia greyish; vein 4 present. 1 (^, 1 $ . 

 Expanse of wings 21 millims. 



San Francisco, May 1871. 



Semasia? oregonana. (Plate LXXIV. fig. 8.) 



Head cinereous, tufted above : palpi short; the second joint thickly clothed; third joint 

 comparatively bare : antennae pubescent in the male. Fore wings fuscous grey, more or less 

 faintly shaded with cinereous or brownish-fuscous streaks and spots. The more usual variety 

 is nearly unicolorous, with a few streaks only visible towards the apical portion of the wing 

 and with a very faintly indicated basal patch outwardly angulated about the middle. A more 

 strongly-marked variety, female, has the basal patch more distinctly defined, covering the basal 



