108 



scallops or poiiiis small; al others, tho scallops form deep re-entering angles, 

 and acute, needle-like points. The extremes of variation are shown in a single 

 Labrador and a single Californian specimen. In the latter, the middle band 

 is niucii less angulated than usual, much as in her.nliaf a, heiug broad and with 

 shallower scallops, and, as in that species, the apex of the wing is sqiiarer 

 than usual; the Ixxlj is of the usual size, but the fore wings are shorter, nieas- 

 iirinir U.5.'j inch in length. It has the brown bands; and I should not call it 

 a true variety. 



The Labrador form, from Cariljou Island, is nuich like a specimen from 

 Iceland, labeled Cidarla tnaicuta by Staudiuger, Init is much smaller. I 

 had described it as distinct, but am now, after a careful study of the species, 

 inchned to regard it as a variety, and describe it as follows : 



Var. bniUHcafa Packard. — (Plate 8, tig. 39.) — Male antennae filiform, 

 long and slender, minutely ciliated beneath; basal joint white. Palpi short 

 and small, rather hairy, a little up-curved, scarcely passing beyond the front, 

 which is cinereous, with dark scales. Thorax cinereous, with dark scales; 

 abdomen paler cinereous. AVings (juite uniforndy dark-ashen ; a subbasal, 

 irregular, brown bund, whitish on the costa, and edged with whitish below; 

 a Ijroad, mesial, dark cinereous band, three times as Inroad on the costa as 

 on the inner edge, with each side irregularly dentate ; on the imier side a 

 large tooth near the inner edge of the wing; on the outer edge, a large tooth 

 situated on the first median nervure. Beyond is a l)road, brown baud, sinn- 

 lar to the inner one, narrowed in the middle by the large tooth of the mesial 

 band, margined with a paler line of acute spots, and becoming black on the 

 costa ; a minute, oblique, pale, apical streak ; black spots on the margin as 

 usual; fringe dusky; no discal dot; on the pale hind wings a discal spot, with 

 two outer, submarginal, curved lines. Beneath, paler, subluteous on the outer 

 third of the lore wings, like the entire surface of the secondaries, which have 

 a submedian dusky patch, most distinct on the costa ; fringe pale, inter- 

 rupted with dusky. Legs dark, liandcd conspicuously with white. 



Length of Ixxly, 0.35 ; of fore wing, 0.4,5 ; expanse of wings, 1.00 inch. 



Caribou Island, mouth of Esquimaux River, Labrador, August 3 (Packard). 



It may Ije known by its inner and outer Ijroad, brown bands, margined 

 exteriudly with whitish, the inner baud becoming whitish, the outer blackish, 

 on tlie costa. Other specimens from the same locality are fully as large and 

 exactly like White Mountain specimens. 



