45 



with fuscous. Thorax and abdomen sulphur yellow, streaked 

 with ochreous scales. Legs whitish ochreous, streaked with brown. 



Fore wings with the first lobe produced into a very acute point, 

 the second lobe broad halberd-shaped, unspotted, clear sulphur 

 yellow, slightly tinged with brownish on the outer fourth of the 

 costa. A minute brown dot before the base of the fissure. 

 Fringes pale yellowish white, cinereous on the hind margin. 

 Hind wings whitish, thickly dusted with cinereous. Fringes 

 concolorous. 



Habitat. California. Early stages and food plant unknown. 



PTEROPHORUS MATHEWIANUS. 

 Leioptilus Mathewianus Zell., Lep. Westk. Am., p. 23 (1874). 



Expanse of wings, 24 mm. Head brownish gray behind ; palpi 

 whitish gray ; antennae dust gray, faintly annulated on the basal 

 third with whitish. Thorax and abdomen whitish gray. Legs 

 light gray, all the femora and tibiae brownish ochre, lightest on 

 hind legs. 



Fore wings pale reddish gray, sprinkled with black scales, es- 

 pecially on the margin. A diffuse brown dot on the cell, nearer 

 to the base of the wing than to the fissure. Before this is a more 

 distinct dot, variable in form and size, and sometimes a pale dot 

 at the base of the second lobe. A white longitudinal spot under 

 the first-named dot, and before the same. an almost pure white 

 stripe runs to the fold, where it widens and sends out a slender 

 line through the middle of the second lobe to its outer margin. A 

 dark-brown line bordered with white on each side runs to the dot 

 on the fissure, and a brown indistinct dot rests on the middle of 

 the first lobe ; two brown spots on the apex of the second lobe 

 and a short brown cross line at the base of the fringes of the outer 

 margin. Hind wings clear brownish gray, with a silky luster. 



Habitat. Vancouver Island. Early stages and food plant un- 

 known. 



PTEROPHORUS PALEACEUS. 



Leioptilus paleaceus Zell., Beitr., p. 126 (1873). 



Lioptilus paleaceus Wlsm., Pter. Cal. and Ore., p. 41, Plate 



III., fig. 2(1880). 

 Leioptilus sericidactylus Murtf., Am. Ent., Vol. III., p. 235 



(1880). 



Expanse of wings, 21-25 mm. Head yellowish brown, pale 

 between the antennae; antennae whitish. Thorax dull yellowish 

 white. Abdomen dull yellowish, with fine longitudinal brownish 



