313 



XXIV. On allied Species of Noctuidae inhabiting 

 Europe and North America 



(SECOND PAPER) 



BY AUG. E. GROTE. 



l^Read before this Society, March 36, 1875.] 



Since the reading of my first paper with this same title before 

 this Society, October 21, 1874, fresh observations have materially 

 reduced the number of species held to be common to both Conti- 

 nents. Not only have certain of the American specimens been 

 found on careful study to afford characters which authorize a dis- 

 tinct name, but three American species, cited by Lederer as occur- 

 ring in Europe, are believed now not to be native to that territory. ^ 

 Although we are warranted in applying fresh names to the American 

 forms, the mind is not to be misled by the title, and while we may 

 consider certain now separate forms as descendants from a common 

 and probably Pliocene stock (Bull. Buff. Soc. N". S., 2, 200), we feel 

 that the arbitrary specific idea has undergone a fresh expansion, and 

 that it can no longer be held by us in any concrete shape. 



The List of Noctuidae originally given on page 193 of this Vol- 

 ume, comprising the species believed to be common to Europe and 

 America, may now read as follows : 



Species lelieved to he common to Europe and North America, 

 exclusive of Labrador or circumpolar forms. 



Europe. 



Agrotis baja {S. V.). 

 c-nigrum {Linn). 

 plecta {Linn.). 

 fennica {Linn.). 

 rubi ( Vieioig). 



America. 



Grote, List N. Am. Noct., 9. 

 Guen., Noct. 1, 328. 

 Gueii., Noct. 1, 32G. 

 Guen., Noct. 1, 270. 

 Grote, Trans. Am. Ent. Soc, 5, 

 90. 



* These species are Mamestra grandis (Stett. Ent. Zeit.), Hadena arctlca and EucHdia cuspi- 

 dea, the latter apparently not the species intended by Lederer under the same niune. 



BUL. BUP. soc. NAT. SCI. (40) MARCH, 1875. 



