90 BULLETIN 44, UNITED STATES NATIONAL MUSEUM. 



C. ridingsiana Grt.* 

 1875. Grt., Bull. Buff. Soc. Nat. Sci., n, 305, Agrotis. 



HABITAT. Colorado, iu May; Arizona; New Mexica. 

 Tlie type is in the British Museum. 



C. flavidens Smith.* 

 1887. Smith, Proc. U. S. Nat. Mus., x, 455, Agrotis. 



HABITAT. Colorado, July; Arizona; New Mexico in August. 

 Types are in the National Museum, and in the collections of Graef 

 and Neumoegen. 



C. flavicollis Smith.* 

 1887. Smith, Proc. U. S. Nat. Mus., x, 456, Agrotis. 



HABITAT. Montana; Colorado; Arizona. 

 The type is in the Tepper collection. 



C. bicollaris Grt.* 



1878. Grt., Bull. Geol. Stirv., iv, 173, 174, Agrotis. 

 1883. Grt., Proc. Am. Phil. Soc., xxi, 155, Agrotis. 



HABITAT. California; Nevada; Arizona. 



The type is in the Edwards collection; I found no specimens in the 

 British Museum. 



C. brocha Morr.* 



1875. Morr., Proc. Ac. Nat. Sci. Phil., 1875, 56, Agrotis. 



tochus Morr. 

 1874. Morr., Proc. Bost. Soc. N. H., xvn, 163, Agrotis. 



HABITAT. Colorado, August to October; Nevada; Kansas; Ne- 

 braska. 



This species is placed under Agrotis furcifera Wlk., in the British 

 Museum collections, in my opinion erroneously. Mr. Walker has also 

 described a specimen as Agrotis transversa, which is almost certainly 

 the same as Morrison's species. There are, however, several forms 

 from Central or South America that come very close, and as careful 

 and critical study would be required to decide specific limitations, for 

 which I had not the time, I prefer leaving the name as it is, simply 

 calling attention to the probabilities, and to the necessity for further 



study. 



C. sponsa Smith.* 



1887. Smith, Proc. U. S. Nat. Mus., x, 457, Agrotis. 



HABITAT. Washington. 



The type is in the National Museum. 



C. cogitans Smith.* 

 1890. Smith, Trans. Am. Ent. Soc., xvn, 46, Agrotis. 



HABITAT. California ; Colorado. 



Types are in the National collection and with Mr. Neumoegen. 



