43 



Fore wings white, tinged more or less with ochre yellow near 

 the base and on the apical third of the costa; a very oblique 

 streak of brown scales on the costa near the apex and a dark- 

 brown spot before the fissure ; a streak of irregular brown scales 

 extends from the base of the wing to the fissure. Fringes white. 

 Hind wings pure white, with a few ochre yellow scales scattered 

 over the surface in some specimens. Fringes white. 



Habitat. New York. Early stages and food plant unknown. 



PTEROPHORUS SUBOCHRACEUS. 



Lioptilus subochraceus Wlsm , Pter. Cal. and Ore., p. 53, Plate 



III., fig. 10 (1880). 

 ? Pterophorus lacteodaclylus Cham., Can. Ent M Vol. V., p. 73 



(1873). 



Having no example of this species from California, I copy Lord 

 Walsingham's description : 



"Head whitish above; face and neck brownish; palpi very 

 short, not projecting as far as the front of the head; antennae 

 whitish ochreous, with the basal joint brown. 



"Fore wings pale subochreous, without spots or markings, ex- 

 cept a rather oblique delicate ferruginous shade above the base of 

 the fissure, reaching the costa before the apex ; the cilia about the 

 dorsal margin of the second lobe are slightly tinged with brownish. 

 Hind wings very pale brownish straw color. Legs whitish. 



"Expanse, 28 mm." 



Habitat. California. Early stages and food plant unknown. 



I have the type of lacteodactylus before me, and the head and 

 palpi agree perfectly with the above description, but the wings are 

 somewhat worn. Without seeing an authentic specimen of sub- 

 ochraceus, I do not feel prepared to pronounce them identical. I 

 have two specimens from Massachusetts which were supposed to 

 be subochraceus, by Mr. Fish, and from which the drawings of the 

 genitalia on Plate IV. were made. In these specimens the palpi 

 are longer than in lacteodactylus, and I do not think they are the 

 same. 



PTEROPHORUS HELIANTHI. 



Lioptilus helianthi Wlsm., Pter. Cal. and Ore., p. 54, Plate III., fig. 11 

 (1880). 



Expanse of wings, 24 mm. Head and thorax whitish ; palpi 

 brownish; antennae white, dotted with brown above. Abdomen 

 whitish. Legs whitish, dotted with brown on the under side of 

 the segments. 



