294 BULLETIN 44, UNITED STATES NATIONAL MUSEUM. 



A. secedens Wlk. 

 1857. Wlk., C. B. Mus., Hot., xn, 913, riitsia. 



HABITAT. Hudson's Bay territory. 



The type is in the British Museum. It is a yellow winged An aria in 

 poor condition, and seems different from anything else in the collec- 

 tion. On the primaries the narrow, irregular, dentate, white s. t. line 

 is followed by dark spots, and on the secondaries the outer black baud 

 is not defined. 



A. impingens Wlk.* 



1857. Wlk., C. B. Mus., Het., xi, 700, Anarta. 



nivaria Grt. 



1875. Grt., Ann. Lye. Nat. Hist, N. Y., xi, 107, Anarta. 

 1880. Grt., Bull. Bkln. Ent. Soc., in, 38, = curtu. 



curta Morr. 



1875. Morr., Ann. Lye. Nat. Hist. N. Y., xi, 96, Mamestra. 

 1880. Grt., Bull. Bkln. Ent. Soc., in, 38, Anarta. 



1880. Grt., Can. Ent., xii, 186. = niraria. 



1881. Grt., Can. "Eat., xin, 126, Anarta. 

 per pur a Morr. 



1875. Morr., Proc. Ac. Nat. Sci., Phil., 1875, 66, Orfhosia. 

 1880. Grt., Bull. Bkln. Ent. Soc., in, 38, = curia. 

 1880. Grt., Can. Ent., xii, 186,,= nivaria. 



HABITAT. Colorado in July; "Kocky Mts." 



Walker's type is in the British Museum; Mr. Grote's type I have 

 not seen; Morrison's types are both in the Tepper collection. The 

 locality, New York, given by Mr. Morrison for 0. per pur a, is certainly an 

 error. Mr. Butler, from the specimens before him, suggests (Entomol- 

 ogist, xxiv, 293) that impingens is near to nivaria, but from my knowl- 

 edge of other specimens I made the reference positively before Mr. 

 Butler's note appeared. 



A. membranosa Morr. 

 1875. Morr., Ann. Lye. Nat. Hist. N. Y., xi, 101, Anarta. 



HABITAT. White Mts., New Hampshire. 



Mr. Morrison's type is probably in the Museum of the Boston Society 

 of Natural History; but I have no memorandum of having seen it 

 there. 



A. lapponica Thnnb. 



1792. Thunb., Diss. Ent., 11, 42, f. 10, Nociua. 

 1861. Stgr., Stett. Ent. Zeit., 1861, 381, Anarta. 



amissa Lefb. 



1836. Lefb., Ann. Soc. Eut. Fr., v, 397. pi. x, f. 6, Anarta. 

 1852. Gn., Spot-. Gen., Noet., n, 192, Anarta. 

 1857. Wlk., C. B. Mus., Het., xi, 698, Anarta. 



1860. Moescbl., Wien. Ent. Monatsehr., iv, 367, Anarta. 



1861. Stgr., Stett. Ent. Zcit., 1861, 381, pr. syn. 



HABITAT. Greenland ; Labrador. 



