343 



the median vein. Second line zigzag, situated in the middle of the wing. 

 Half-way between it and the outer edge of the wing is the sinuous extradiscal 

 line, accompanied externally by a faint dark line. There are three lines on 

 the hind wings. Beneath, of a decided ochreous tint, with black scales at the 

 base, and two very dark lines common to both wings. Fringe above con- 

 colorous with the wings, beneath with a reddish tinge. Legs bright shining 

 gray. 



Length of body, c?, 0.35; of fore wings, 0.47; expanse of wings 1.05 

 inches. 



Okak, Labrador (Mus. Peab. Acad. Sc). 



This interesting species differs from all the eastern forms by its heavily- 

 ciliated antennas, its bright brick-red wings, which are pure ochreous beneath. 

 It is closely allied to the Californian A. rubrolineata, but rather darker, with 

 darker lines, and the body is rather more hairy than in the Californian species. 

 It differs, in fact, from the Californian rubrolineata in those characters which 

 Arctic species are apt to have, viz, a tendency to melanism, a more hairy 

 body, and heavily-ciliated antennae. 



Actdalia rubrolineata Packard. Plate 10, fig. 62. 



Acidalia rubrolinearia Pack., Proc. Bost. Soc. Nat. Hist., xvi,28, 1874. 



1 <? and 1 9. — Closely allied to A. californiata. Dull reddish-ash; the 

 fore wings with. four dull brick-red wavy lines (three on hind wings). Body 

 and appendages, including legs, a little darker than wings, especially on the 

 under side of body, where there are black scales mixed with the brown ones. 

 Palpi stout and bushy, with unusually tang hairs. Antennae with long dense 

 cilia?; beneath black, above pale brown. Wings a little darker at base than 

 externally; fore wings with a basal curved, reddish-brown line; an indistinct 

 brown discal dot; beyond, three parallel dull reddish-brown wavy lines, the 

 inner twice as broad as the outer. An interrupted tine black line at the edge 

 of the fringe on both wings. Hind wings with three lines, the inner straight, 

 the broadest and darkest wavy, within which the wing is dusky. Fringe on 

 both wings reddish snuff brown. 



Beneath, the wings are a little clearer than above, with the two middle, 

 lines very distinct, reddish-brown, the inner less wavy than the outer, the 

 wing within being dusky, edge of wing with the black line and fringe as above. 

 Legs reddish-brown, tarsi paler, though with scattered black scales. 



