29-1 BULLETIN 14, UNITED STATES NATIONAL MUSEUM. 



A. secedens Wlk. 

 1857. Wlk., C. B. Mns., H(-t., xn, 918, I'liisia. 



Habitat. — Hudson's Bay lenitory. 



The type is in the British Museum. It is a yellow win jied Aiwrfa in 

 l)Oor condition, and seems different from anything else in the collec- 

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

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

 is not defined. 



A. impingens Wlk.* 



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



nivaria Grt. 

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

 1880. Grt., Bull. Bkln. Ent. Soc, ni, .38, z^curtu. 



eurta Morr. 

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

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



1880. Grt., Cau. Ent., xii, 186. =nh-ana. 



1881. Grt., Cau. Eut., xiii, 126, Anarta. 

 perpiira Morr. 



1875. Morr., Proc. Ac. Nat. Sci., Pliil., 1875, 06, Orthosia. 

 1880. Grt., Bull. Bkln. Ent. Soe., iii, 38, = carta. 

 1880. Grt., Cau. I-Lnt., xii, 186, = nivaria. 



HABITAT. — Colorado in July; ''Eocky 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. perpura, is certainly an 

 error. Mr. ]^)utler, from the specimens before him, suggests (Entomol- 

 ogist, XXIV, 293) that unpingenH is near to niraria, but from my knowl- 

 edge of other specimens 1 made the reference positively before Mr. 

 Butler's note appeared. 



A. membrauosa Morr. 



1875. Morr., Ann. Lye. Niit. Hist. N. Y., xi. 101, .hiarta. 



Habitat. — White Mts., New Hampshire. 



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

 of Natural History; but 1 have no memorandum of having seen it 

 there. 



A. lapponica Thuub. 



1792. Thuub., Diss. Eut., n, 42, f. 10, Noctua. 



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



amissa Lefb. 



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



1852. Gn., Spec. Gen., Noct., ii, 192, Anarta. 



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



1860. Moesehl., Wien. Ent. Mouatsehr., iv, 367, Anarta. 



1861. Stgr., Stett. Eut. Zeit., 1861, 381, pr. syu. 



Habitat. — Greenland ; Labrador. 



