OF NORTH AMERICA. 105 



following species from the Pacific Coast, while appearing to belong to 

 the present genus, differ considerably both in size and coloring from 

 those found in more northern latitudes, being destitute of all trace of 

 silvery bands and of rather smaller size even than S. argentata, Packard, 

 which expands two and one-half inches. 



l.-STHENOPIS BEHKNSII. N. S. (PI. 4, fig. 6.) 



? . — Entire insect pale salmon color. Anterior wings rather thinly 

 covered with coarse scales of rather dirty salmon color. Fringes some- 

 what paler. Posterior wings very pale, the nervules clothed with coarse 

 scales, concolorous with the anterior wings. Beneath all the wings arc 

 uniform pale salmon color, rather darker on the costa of all the wings. 



Expanse of wmgs, 2.20 inches. Length of body, 0.95 inch. 



Habitat. — California, (Coll. Behrens.) 



This fine and very distinct species is from the collection of Mr. James 

 Behrens of San Francisco, who received the single female specimen 

 above described from Timber Cove, in Mendocino County, California. 

 I have much pleasure in dedicating this species to this gentleman, from 

 whom I have received many favors, he having placed his entire collec- 

 tion at my service for the purpose of describing the numerous unique 

 specimens contained therein. 



l.-STHENOPIS MONTANA.* N. S. (PL 4, fig. 7.) 



5 . — Entire insect pale brown. Anterior wings with a narrow, sub- 

 basal, oblique paler band, edged with darker, terminating on the sub- 

 costal vein where it is suddenly enlarged; an extra median double row 

 of interspaceal light curved lines, edged outwardly with darker, some- 

 what bent outward as they approach the costa; a pale obscure submar- 

 ginal band edged with paler, and exteriorly with darker between the 

 nervules, but not reaching the apex ; and finally an indistinct series of 

 marginal interspaceal dark angular streaks. The basal and costal 

 regions are somewhat darker than the rest of the wing, and the apical 

 half of the costa shows three or four pale whitish yellow spots. Fringes 

 concolorous. 



* Through an oversight, the lithographing of the figure is defective on the left side. 

 The markings on the right wings are correct. 



