256 BULLETIN 44, UNITED STATES NATIONAL MUSEUM. 



P. ampla Wlk.* 

 1857. Wlk., C. B. Mns., Het., xn, 910, Plusia. 



HABITAT. Hudson Bay Territory; Canada; Northern and Eastern 

 States, July and August. 

 The type is in the British Museum. 



P. simplex Gn.* 



1852. Gn., Spec. Gen., Noct., n, 346, Plusia. 



1857. Wlk., C. B. Mus., Het., xn, 907, Pl,< N ;,i.. 



1877. Grt., Bull. Geol. Surv., in, 119, Plusia. 



1881. CocLiiillett, Can, Eut., xm, 21 larva sub nom. prccationis. 



1882. Coquillett, Can. Eut., xiv, 16, larva. 



HABITAT. Hudson Bay Territory; Canada; United States east of 

 the Kocky Mountains, throughout the season; Colorado, 12,000 feet; 

 New Mexico. 



The type is in the British Museum. 





 P. pasiphaeia Grt.* 



1873. Grt., Bull. Buff. Soc. Nat. Sci., i, 146, pi. iv, f. 1, Plusia. 

 HABITAT. California in October. 



The type is in the British Museum. Mr. Grote has cited, with a 

 query, P. ecMnocystis Behr, to this species. The description of Dr. 

 Behr's species tells nothing; but I have given under brassicce my rea- 

 sons for citing it there. 



P. diasema Bdv. 



1829. Bdv.,Eur. Lep., Ind. Meth., 93, Plusia. 

 1852. Gn., Spec. Gen., Noct., n, 355, Plusia. 

 1857. Wlk., C. B. Mus., Het., xn, 902, Plusia. 

 1857. Stand., Stett. Ent. Zeit., 1857, 305, Plusia. 



HABITAT. Labrador; Lapland; Colorado. 



The type is probably with M. Oberthiir, at Kenncs. Mr. Grote has 

 always written diasema Dalinan; but I have not been able to ascertain 

 why. I still followed Mr. Grote in my list, but make the change here 

 because I can not trace the species otherwise. 



P. parilis Hbn. 



1800. Hbn., Schmett. Eur., Noct., in, 422, Noctua. 



1816. Hbn., Verzeichniss, 251, Autographa. 



1829. Bdv., Ind. Meth., 159, Plusia. 



1852. Gn., Spec. Gen., Noct., II, 355, Plusia. 



1857. Wlk., C. B. Mus., Het., xii, 903, Plusia. 



1860. Moeschl., Wien. Ent. Monatschr., iv, 371, Plusia. 



qnadriplaga Wlk. 

 1857. Wlk., C. B. Mus., Het., xii, 911, Pluna. 



HABITAT. Fraw Island, Arctic North America ; Labrador; Lapland. 



Walker's type is in the British Museum, and is the parilis of the 

 Grote, Mo3schler, and other collections. Walker cites Cramer's figure of 

 Phalwnaiota (Ex. n, 106, pi. 165, fig. C.) to his species, suggesting that 



