158 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



at various places in Arctic Siberia from Bering Strait to the Ural 

 Mountains. It has also been recorded from the Sierra Nevada 

 Mountains on the authority of Henry Edwards. This last record, 

 however, I very much doubt. 



2. Nebria bifaria Mann. 



Mann., Bull. Mosc, XXVI (1853), p. 128. 



N. Carbonaria Mann., Bull. Mosc, XXV (1852), p. 293. 



Heyden, Cat. Col. Siberia, Berlin (1880-81), p. 13. 



Six specimens of the typical form with red femora and dark 

 knees, tibia, and tarsi, from St. Paul Island, the type locality. 

 Typical specimens of the same species are also to be found at 

 Teller and Nome, and on the Alaska Peninsula and all black 

 phases with the same at the last locality as well as near the 

 mouth of the Mackenzie. (See Report Canadian Arctic Exped., 

 Vol. Ill, Insects (1919), p. 14E.) It has also been reported 

 from Kamchatka and by Heyden from various places along the 

 coast of northeastern Siberia. It has not been found on the 

 Aleutian Islands. Bifaria is the only Nebria that I have seen in 

 the various collections that have been made on the Pribilof Islands. 

 The Nebria reducta Casey (Memoirs on Col., IX (1920), p. 150), 

 described from St. Paul Island, I am inclined to believe is not 

 only a dark or fully pigmented phase of N. viridis Horn, but may 

 never have been actually taken on the islands. A good deal of 

 the material taken in Alaska has, through carelessness, often been 

 tagged with wrong locality labels by the collectors. 



3. Patrobus septentrionis Dej. 



Dejean, Spec, III (1828), p. 29. 



Fossifrons Esch., Men. de la Soc Imp. de Natur. de Moscou, 

 VI, p. 104, 9. 



Fossifrons Esch., Mann., Bull. Mosc, XVI (1843), (Sep. 

 p. 22). 



A series of 28 specimens, three from St. Paul Island, the 

 rest from St. George. These are all similar to the phase described 

 as fossifrons Esch., from Unalaska, and found so abundantly there. 

 The species is found on this continent extending from Alaska 

 to Labrador, to the Lake Superior region, down the Rockies to 



