Horn.] 1*0 [Nov. 5, 



A. melanopus Hald.,* Proc. Acad., i, p. 303. 

 agricoia % Lee.,* Ann. Lye, iv, p. 279. 



A. nivalis, n. sp.* 



A. discoideus Dej.,* Species v, p. 831. 



A. baltimorensis Say, Trans. Am. Philos. Soc, ii, p. 33 ; Dej. Sp. iv, p. 153. 



Sanctm-Orucis Fab., Ent. Syst. Suppl., p. 58; Schaum. Stett. Zeits., 

 1847, p. 47. 



A. pitychrous Lee.,* Proc. Acad., 1861, p. 339. 



A. porosus Motsch., Bull. Mosc, 1845, iv, p. 344. 

 sublmis Motsch.,* BnW. Mosc, 1859, iii, p. 138. 

 chalceus Lee.,* Co\., Kansas, 1859, p. 2. 

 alternans Lee.,* Ann. Lye, v, p. 184. 

 mridesGensliQC.* 'Proc. Acad., 1861, p. 339. 

 I'uclis Lee.,* New Species, 1863, p. 15. 

 Lecontei Harold, Catalogus, p. 256. 

 ? alternans Mots. (Harpalus), Bull. Mosc, 1845, iv, p. 343. 



A. laetus Dej.,* Species, iv, p. 154. 



A. coenus Say, Trans. Am. Philos. Soc, ii, p. 34 ; Dej. Species, iv, p. 158. 

 submieus Lee.,* Ann. Lye, iv, p. 285. 

 obscuriis Lee.,* loc. cit., p. 286. 



A. amaroides Lee,* Ann. Lye, v, p. 184. 



A. sericeus Harr.,* N. E. Farmer, 1828, p. 177. 

 femoratus Dej., Species, iv, p. 334. 



A. (DicJiirus) pallidus Mots., Bull. Mosc, 1859, iii, p. 137. Unknown to me. 



Species marked * are those of which I have studied the type or a speci- 

 men carefully compared therewith. 



Critical notes on the Species of Selenophorus of the United States. By 

 George H. Horn, M. D. 



{Read before the American PJdlosophical Society, Nov. ^th, 1880.) 



Without wisliing at the present time to discuss the question of the valid- 

 ity of Selenophorus as a genus distinct from Harpalus, I will only state 

 that no characters have yet been given which are permanent in all the 

 species. Nevertheless it seems to be at least a well defined group in which 

 there are three series of punctures or foveolse situated on the second, fifth 

 and seventh elytral strise, a character which suggests a similar division of 

 species in Pterostichus. 



