THE CANADIAN ENTOMOLOGIST 233 



are those at the basal third and above the tornus belonging to the 

 row above the fold. Cilia ochreous, with a line of dark-tipped 

 scales. Hind wings gray, with a faint ochreous tinge; cilia gray, 

 ochreous at extreme bases. Fore and middle legs closely irrorated 

 with fuscous, hind legs sparsely speckled. Abdomen gray, margins 

 of segments whitish. 



Expanse 11.5 mm. 



Locality.— Winnfield, La., June 26 (G. R. Pilate). 



Type in author's collection. 



Gracilariid.^. 

 Acrocercops affinis, n. sp. 



Palpi with whitish ground colour more or less obscured with 

 fuscous dusting; second segment of labial palpus white on the 

 under surface, elsewhere fuscous; third segment whith the base 

 white followed by a narrow, blackish annulus which is succeeded 

 by a narrow whitish annulus, remainder of segment fuscous. 

 Antennae fuscous faintly paler annulated. Head whitish more or 

 less densely streaked with fuscous. Fore wings brownish fuscous, 

 dusted, marked with a series of ten transverse whitish strigul«, 

 the first eight equidistant, the last two in the apical cilia; these 

 . strigulae are most distinct on the costa, obsolete or ill-defined 

 where they cross the middle of the wing, and ending in whitish 

 spots on the dorsum. The first streak is usually nearly obsolete; 

 the fourth ends in a whitish blotch on the dorsum; the seventh 

 is more oblique and more clearly defined in the middle of the 

 "wing than the preceding ones; the eighth encloses the apex. The 

 fifth streak on the costa is sometimes double. The ground colour 

 \ is more or less darkened on the margins between the streaks, 

 especially between the fourth and fifth, and sixth and seventh 

 costal streaks; and between the second and third, and fourth and 

 fifth dorsal streaks. Hind wings and cilia gray. Legs whitish 

 banded with fuscous. Abdomen gray. 



Expanse 9.5-10 mm. 

 i Localities. — Yosemite National Park, California; San Ber- 



nardino Mts., California. 



Types in author's collection. 



A large series bred from upper side blotch mines on oak, both 

 deciduous and evergreen. The mine starts as a narrow, white 



