new species of North American Tortricidse. 513 



Semasia ochrocephala, sp. n. 



Antenna greyish, the basal joint pale ochreous. Palpi whitish 

 ochreous, with a brown spot on the outer side of the second joint. 

 Head whitish ochreous. Thorax whitish ochreous, streaked with 

 fawn-brown. Forcwings whitish ochreous, much suffused with 

 fawn-brown from the base to the ocelloid patch as high as the 

 upper edge of the cell ; some narrow oblique fawn-brown streak- 

 lets along the costal margin alternate with wider ones ; an oblique 

 patch of the same colour at about the middle of the margin con- 

 nected with the dark suffusion below it, on this suffused portion 

 are patches of greyish fuscous tending obliquely outwards from 

 the basal third of the dorsal margin and reverting to it, beyond the 

 middle ; the ocelloid patch is pale yellowish ochreous margined by 

 shining silvery bands and containing two black streaks; cilia 

 whitish ochreous, with a slight shade along their base near the 

 apex. Exp. al., 18 mm. Hind wings brownish grey, with whitish 

 cilia, shaded at their base. Abdomen greyish fuscous, anal tuft 

 whitish ochreous. Legs whitish. 



Type. $ . Mus. Wlsm. 



Hab. Colorado Loveland, 5,000 ft., July, 1891 

 (Smith). 



Several specimens of this species which appears to be 

 allied to 8. corculana, Z. 



iSemasia oUiterana, sp. n. (PL XII V fig. 15.) 



Antennae white, faintly annulated. Palpi, Head, and Thorax 

 milk white. Forewings milk white ; an elongate grey spot below 

 the fold at one-fourth, and a patch of grey scales at the outer end 

 of the cell, occasionally preceded by longitudinal grey streaks, 

 beyond this some lines of grey scales extend outwards to the apical 

 margin below the apex, terminating in an oblique streak of ferru- 

 ginous and black scaling connected with a grey shade in the cilia 

 and enclosing a small ochreous patch, above which the apex and 

 apical cilia are pure white, as is the whole costal fourth of the 

 wing, with the exception of a series of grey dots along the extreme 

 margin and two short streaks before the apex ; the ocelloid patch 

 is shining white containing transverse lines of ferruginous and 

 black scales sometimes only faintly indicated ; opposite to this the 

 apical margin and cilia are thickly speckled with grey, the spaces 

 above and below being white, with the exception of two smaller 

 grey patches at the anal angle. Exp. al., 31 mm. Hindwings 

 brownish grey ; cilia white, with a faint shade along their base. 

 Abdomen brownish grey. Legs white. 



