IIS BULLETIN 11, UNITEU STATES NATIONAL MUSEUM. 



HABITAT. Nova Scotia; Hudson's Bay territory; Maine; New 

 Hampshire; Colorado; Sierra Nevada, California. 



The types of the Grote and Walker species are in the British Museum, 

 and are the same as my desperata. Mr. Butler's reference was not made 

 until October 1891, after my revision was published. I had had the 

 species as dimmocki, and had so named it in the National Museum and 

 elsewhere. Mr. Grote's description misled me and induced me to cor- 

 rect a supposed misidentification. The type is somewhat rubbed ; but 

 the M of the s. t. line is distinct, not wanting, as stated by Mr. Grote. 



M. canadensis Smith. 

 1887. Smith, Proc. U. S. Nat. Mus., x, 464, Mamestra. 



HABITAT. New Brunswick. 

 The type is with Mr. Thaxter. 



M. nevadae Grt. 



1876. Grt., Bull. Buff. Soc. Nat. Sci., in, 84, Mamestra. 

 1889. Butler, Trims. Eiit. Soc. Loud., 1889, SXo thalassina. 



HABITAT. Sierra Nevada, California. 



This seems a good species, almost midway between subjuncta and 

 atlantica. I had not seen it before, the specimen in the Edwards col- 

 lection being erroneously named. 



M. subjuncta G. and R. 



1868. G. & R., Trans. Am. Eut. Soc., n, 198, ]>]. 3, f. 71, Hadena. 



1869. Riley, 1st Rept. Ins. Mo.. 84, pi. I, f. 14-17, Hadena. 



1873. Grt., Bull. Buff. Soc. Nat. Sci., i, 28_>, Mamestra. 



1874. Grt., Bull. Buff. Soc. Nat. Sci., n, 12, Mamestra. 



1875. Speyer, Stett. Eut. Zeit., xxxvi, 138, Mamestra. 



HABITAT. Canada; Northern, Eastern, and Middle States; Ohio; 

 Minnesota; Colorado; Nebraska; New Mexico, June to September; 

 Oregon, May and June. 



A specimen, not the type, is in the British Museum. 



M. graiidis Bdv. 4 " 



1840. Bdv., Gen. et Ind. Meth., 120, No. 950, Hadena. 



1841. Gu., Noct. Ind. Meth., 244, Hadena. 



1852. Gu., Spec. Gen., Noct., n, 105, pi. vin, f. 10, Hadena. 



1857. Wlk., C.B. Mus., Met., xi, 578, Hadena. 



1857. Led., Noct. Eur., 90, Mamestra. 



1883. Thaxter, Papilio, rii, 17, Mamestra. 



libera Wlk. 



1856. Wlk., C.B. Mus.. Het., ix, 179, Xylopliasia. 



1882. Grt., 111. Essay, 44, pr.syu. 



HABITAT. Greenland; Lapland; Canada; Maine to Pennsylvania; 

 west to Illinois, Wisconsin; Minnesota and Colorado, May, June, and 

 October. 



