54 BULLETIN 44, UNITED STATES NATIONAL MUSEUM. 



Mr. Grote bad named cupidissima in Mr. Neumoegen's collection, a 

 series of specimens which I assumed were correctly determined. In- 

 terpreting Mr. Grote's descriptions by these specimens, I made orbis 

 and Icetula synonyms of cupidissima in the monograph. The true cupi- 

 dissima is very different from this species, and neither orbis nor Icctula 

 agree at all with it. A new name for what I have erroneously charac- 

 terized as Mr. Grote's species is therefore necessary, and I propose 

 trigona, as above. The types of this species are the specimens named 

 cupidissima by me in the collections U. S. National Museum. 



R. bimarginalis Grt. 



1883. Grt., Anil. & Mag., N. H., 1883, 53, Agrotls. 

 1883. Grt., Trans. Kaus. Ac. ScL, vin, 54 (Reprint). 



HABITAT. New Mexico. 



I have seen one of the specimens marked "type" by Mr. Grote, in 

 the Neumoegen collection, and Prof. Snow also has a specimen in his 

 collection. 



R. vittifrons Grt. 



1864. Grt., Proc. Ent. Soc. Phil., nr, 527, pi. 5, f. 8, Noctua. 

 1868. Grt., Trans. Am. Ent. Soc., II, 309, Agrotis. 



HABITAT. Colorado, Glenwood Springs in September. 



The type is in the collection of the American Entomological Society. 

 The specimen in the British Museum, labeled vittifrons, in Mr. Grote's 

 handwriting, is incorrectly determined, and is formalis. 



R. inelegans Smith. 



1890. Smith, Trans. Am. Ent. Soc., xvn, 43, Agrotis. 



HABITAT. Sierra Nevada, California. 



The type is in the collection of the late Mr. Henry Edwards. 



R. mirabilis Grt. 

 1879. Grt., No. Am. Ent., I, 39, Agrotis. 



HABITAT. Colorado; Arizona; New Mexico. 



The type in the British Museum agrees with the specimens I have 

 seen in American collections. 



R. carissima Harv. 

 1875. Harv., in Groto, Check List, 25, Agrotis. 



HABITAT. California. 



The male type is in the British Museum, and had been heretofore un- 

 known to me. It is broad-winged, somewhat like Orthodes, and quite 

 unlike any other of the species of this genus. It has no very close 

 allies, and is placed in the series here because the orbicular, so far as it 

 is traceable, is complete. 



