ARTHROPODA OF THE COMMANDER ISLANDS. 329 



(3) Kehria duhia Sahlberg. Vega 1885, 63, 69. Heyden, Cat. Coleop. v. Sibir., 1895, p. 12. 



Mkolski, Bering Island. Four specimens, July 28, 1882 (L. Stejneger) ; five exam- 

 ples, 1897 (Barrett-Hamilton); Topokof Island, tbree specimens. May 21, 1882, two 

 examples in 1883 (Stejneger); Komandor, one example, August 29, 1882 (Stejneger); 

 Copper Island, three examples, August, 1895 (Stejneger); five examples by Barrett- 

 Hamilton in 1897; Kluchevski, Kamchatka, one example in 1897 (L. Stejneger). 



Geographical distribution. — Kamchatka, East Siberia. 



The species is exceedingly close to N. sahlbergi Fischer, distributed over Arctic 

 America from Kenai to Mount Washington, N. H. Specimens from British Columbia 

 are exactly like the dark form from Commander Islands. 



(4) Nebria septentrionis Motscliulsky (?) 



Glinka. One example in 1897 (Dr. Stejneger). 



(5) Notiophiltts aquaticus Linnaeus, Faun. Suec, No. 752. Sturm, Ins., VII, p. 142, 1. 183, f. 0. Schaum, 



Nat. Ins., I, p. 62. SoMiJdte, Nat. Tide. 1866, 1. 13, f. 19. J. Sahlberg, Vega 85, 69. Heyden, Cat. 

 Coleop. V. Sibir., 1895, p. 18. 



Copper Island. One example, August, 1895 (Stejneger). 



Geographical distribution. — Northern and middle Europe, northern Asia and 

 Alaska. 



(6) Patrobus septentrionis DejeaiTL. Spec, III, p. 29. Jaoq. II, t. 106, f. 2. Schaum, Nat. Ins., I, p. 377. 



Schouh. Dejean, Cat. 3d Ed., p. 32. 

 alpinua Curtis, Brit. Ent. IV, 1. 192. 

 hyperboreus Dej., Spec. Ill, p. 30; id. Cat. 

 picicornis Zetterst. Faun. Lapp., I, p. 32. . 

 rufipes var. c. Gyll., Ins. Suec._, II, p. 97. 

 var. marginatua Eschsch., Dej. Cat. 



var. soenMS Gredler, Kaf. Tirol., 1863, p. 28. J. Sahlberg, Vega 85, 63,69. Heyden, Cat. 



Coleop. V. Qibir., 1895, p. 16. 



Mkolski, Bering Island, two examples July 28, 1882 (L. Stejneger) ; four specimens 



in 1897 (Barrett-Hamilton); Preobrazhenski, Copper Island, one specimen. May 0, 



1882, and another August, 1895 (Stejneger). In 1897 Mr. Barrett-Hamilton took 



three specimens on same island. 



Sahlberg records a single specimen taken by the Vega expedition on Bering 



Island. 



Geographical distribution. — ^Arctic Europe, Siberia, and Arctic America to Michi- 

 gan and New Hampshire. 



(7) Trechus chalyheus Mannerheim. Bull. Moac, 1843, p. 43.' 



Copper Island, one example; Bering Island, one example, taken by Mr. Barrett- 

 Hamilton in 1897. 



(8) iiriis meZo«ojas«ncMS Dejean. Spec, III, p. 519. Mannerh., Bull.Moso.,1843, II, p. 210. Eschsch., 



Dej. Cat., 3d. Ed., p., 45. 

 melanogaster Sturm, Cat., 1st Ed., p. 91. Gemminger et Harold, Cat., I, p. 341. Heyden, Cat. 

 Coleop. V. Sibir., 1895, p. 23. 

 Nikolski, Bering Island, three examples, July 28, 1882 (L. Stejneger); one 

 example, 1897 (Barrett- Hamilton); Preobrazhenski, Copper Island, one example. May 

 6, 1882 (L. Stejneger); one example in 1897, (Barrett-Hamilton). 

 Geographical distribution. — Kamchatka, Unalaska, Kadiak. 



