66 BULLETIN 44, UNITED STATES NATIONAL MUSEUM. 



A. violaris G. & E. 

 1868. G. & R., Trans. Am. Ent. Soc, i, 353, pi. 7, f. 59, Agrotla. 

 Habitat. — Pennsylvania; Middle States. 



The specimen in the British Museum is not the type. The type 

 is in the Museum of Comparative Zoology at Cambridge, and is marked 

 New York, Mrs. Bridgham. There is also a specimen in the collection 

 of the American Entomological Society at Philadelphia, labeled by Mr. 

 Grotej but not marked type. It is, h-owever, likely that this specimen 

 is the original of the figure illustrating the description. 



A. aurulenta Smith.* 

 1890. Smith, Bull. U. S. Nat. Mus., No. 38, 215, Jgrotis. 



HABITAT. — Colorado, foot-hills near Denver, Platte Canon, 6,500 

 feet; Omaha, Nebraska, in June; Arizona. 

 The types are in the National Museum collection. 



A. ypsilon Rott.* 



1776. Rott., Naturf, xli, 141, Noctua. 



1816. Hiib., Verzeichniss, 225, Exarnis. 



1875. Speyer, Stett. Ent. Zeit., xxxvi, 135, Agroiis. 



1883. Saund., Fruit Insects, 327, f. 338, Agrotis. 



1889. Butler, Trans. Ent. Soc. Lond., 380, Peridroma. 



suffusa S. V. 

 1776. S. v., p. 80, nomen Catalogi. 

 1852, Gn., Sp, Gen., Noct., i, 268, Agrotis, 

 1857. Wlk., C. B. Mus., Het., x, 309, Agrotis. 



telifera Harr. 



1841. Harr., Rept. Ins. Mass., Agrotis. 



1842. Harr., Inj. Ins., 323, Agrotis. 



1864. Grt., Proc. Ent. Soc. Phil., iii, 95, pr. syn. 



1868. Riley, Rept. Ins. Mo., i, 28, 80, pi. i, f. 8-10, Agrotis. 



1881. Riley, Index and Suppl. to Mo. Repts., 55, pr. syn. 



idonea Cram. 

 1782. Cram., Exot., Ill, 150, 27o, f. H, Phalwna. 

 1852. Gn., Sp. Gen., Noct., i, 269, pr. var. 

 1856. Wlk., C. B. Mus., Het., 309, pr. syn. 



Habitat. — United States and Canada, June to October; Europe. 



This commen and well-known species has a large European biblio- 

 graphy, and has been frequently described in all its stages in economic 

 publications. What has been above given will serve to authenticate 

 the synonymy so far as necessary here. 



A. geniculata G. & R.* 



1868. G. «fe R., Trans. Am. Ent. Soc, i, 349, pi. 7, f. 54, Agrotis. 



Habitat. — Northern, Eastern, and Middle States; Canada; Massa- 

 chusetts in August; District of Columbia in September. 



The specimen in the British Museum agrees with the determination 

 usual in American collections, but it is not the type. The tyi)e is in 



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