58 PROCEEDINGS OF THE ACADEiMY OF 



Island (Fred. Tepper) ; Albany, K Y. (J. A. Lintner); Boston, 

 Mass. (H. K. Morrison) ; Maine (A. S. Packard, Jr.). 



The specimens show little or no variation ; the following are 

 the characters of the species : All the tibiae spinose ; ovipositor 

 of the female slightly extended ; the collar with a distinct heavy 

 black line. 



Coloration of the anterior wings entirety black, and light and 

 dark cinereous ; a very distinct thick basal dash ; interior line 

 black, oblique, nearly straight; to it the small black claviform spot 

 is attached ; three very conspicuous, equal, light cinereous subcos- 

 tal spots, the first and second (a basal spot and the orbicular) 

 separated by a clear black, triangular spot, the second and third 

 (the orbicular and reniform) separated b}^ a quadrate spot of the 

 same color ; the median shade absent; exterior line black, gemi- 

 nate, preceded by a darkening of the ground color ; the subternii- 

 nal line light, followed by the dark terminal space ; the fringe 

 lio-hter cinereous. 



Posterior wings uniform dark fuscous in eastern specimens ; in 

 the Coloradan specimens there is a quite distinct terminal dark- 

 gray band. 



Beneath gray, not characteristic. On the anterior wings of this 

 species there are three shades of cinereous, the light cinereous of 

 the subcostal spots, the dark cinereous of the terminal and latter 

 half of the median space, and a cinereous shade between the two 

 which prevails over the rest of the wings. 



Agrotis rileyana, Morr. 



Proc. Bos. Soc. Nat. Hist., vol. xvii. p. 166 (1874). 



We have recently received from Mr. Thos. E. Bean, beautiful 

 specimens of both sexes of this rare species, and we improve the 

 opportunity to give a more extended description of it. 



It belongs to the group of which A. messo?-ia, Harr., is the most 

 common and widely spread member; it diners from this species 

 by the bipectinate antennae of the male and from all other species 

 of the genus by the coarse rough squamation of the anterior 

 wings; the scales are almost as large as those of Valeria grotei, 

 Morr. 



The species is stout and robust, and the terminal spines of the 

 anterior tibiae are very large and heavy ; the median lines are 

 simple and distinct; the ordinary spots are black, widely sepa- 



