12 PLATYPTILUS. 



atomosa; post ids brunneis, ciliorwn basibus 

 albidis. 



Tibiis cinereis, albido annulatis, pedibus et calcari- 

 bus albidis. 



Head and palpi rather ochreous ; frontal tuft short. 



Fore wings thickly dusted with brownish ochreous ; 

 the costa irrorated with fuscous, the two ante- 

 median spots and the triangular costal patch 

 fuscous; the line at the base of the white 

 fringes on the apical margin brownish fuscous ; 

 the space beyond the triangular patch and the 

 submarginal line conspicuously whitish, the in- 

 tervening shade brown. 



Hind wings brown, with brownish fringes, which 

 have their bases distinctly whitish ; a few fuscous 

 scales on the dorsal margin of the third lobe 

 near the base. 



The third pair of legs cinereous, with conspicuous 

 whitish annulations below each joint, the spurs 

 and feet being also white ; the triangular costal 

 patch more produced towards the apex than in 

 the preceding species. 



Expanse 25 millims. 



This species occurs in Northern Oregon ; the larvae 

 were found feeding on buds and flowers of a species 

 of Orthocarpus, Nuttall (one of the Scrophularinese), 

 on Current Creek, an affluent of the John-Day River, 

 April 16th, 1872, from which four specimens of the 

 imago were bred in June. 



