137 



Caribou Island, Southern Labrador, July 28, August G (Packard) ; Phila 

 delphia, Pa. (Amcr. Ent. Soc.) ; Colorado (Ridings) ; mountains of Colorado, 

 June 24, July 19, Sept. 8 (Carpenter, Hayden's Survey); California (Edwards); 

 Mendocino, Cal. (Behrens) ; Victoria, Vancouver Island (Crotch). 



The Californian and Rocky Mountain examples are shaped like the Ice- 

 land ones, but with the inner edge of the mesial band on the Hire wings 

 heavier. The females are much larger than eastern ones, expanding 1.30 

 inches. The single Pennsylvanian individual does not differ from the western 

 examples. The Labrador examples usually have heavier markings, and in 

 nearly all cases shorter wings than in the Iceland or Californian examples. 

 A single Labrador example agrees well with an Iceland one which differs a 

 little from the normal form, the median baud being very broad, with the 

 edges less heavy than usual. Western and Californian examples have the 

 fore wing 0.62 inch long. 



I append a description of the example I described as strigata: 



Male antennae well pectinated, dark, concolorous with the front and 

 the palpi, which are long and slender, especially the third joint. Fore wings 

 with two basal lines; a broad, black band, contracting greatly just before the 

 hind edge, where it is about one-third as broad as on the costa ; a broad 

 mesial tooth on the outer edge, below a little sinuated. This band is accom- 

 panied on the outer edge by a marginal dusky band. Beyond is a row of 

 fine, nervular, black dots; a submarg'mal, white, zigzag line, going obliquely 

 to the apex. On the costa is a subapical pair of black stripes, the inner of 

 the two being oblique. The hind wings are pale, with very faintly-marked 

 lines; luteous beneath toward the apex; two dark lines beneath, the outer 

 one consisting of dots. Discal dots distinct. Abdomen dusky, with the seg- 

 ments edsred with white. 



Length of body, 0.40; of fore wing, 0.50 inch. 



Differs in its broadly-pectinated antennae, the broad, mesial, black band 

 narrowing rapidly on the inner edge; also, by the distinct discal dot, and the 

 quite distinct dusky line along the outer margin of the band, with the distinct, 

 oblique, black line on the costa near the apex, and the black dots beneath 

 the spot on the nervules. 



August 3, Caribou Island, Labrador. 



Var. labradorensis. — 8. — Allied to O. designate, but the antennse are 

 much more finely ciliated. Palpi as usual. Body dark cinereous, with black 

 18 P n 



