Trechus chalybeus Dejean, 1831

Bousquet, Yves, 2012, Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico, ZooKeys 245, pp. 1-1722 : 334

Trechus chalybeus Dejean, 1831

Trechus chalybeus Dejean, 1831: 17. Type locality: «île d’Ounalaschka, l’une des îles Aleutiennes [Alaska]" (original citation). One syntype in MHNP (Lindroth 1955b: 14).

Trechus californicus Motschulsky, 1845b: 347. Type locality: «île Sitka [= Baranof Island, Alaska]" (original citation). Four syntypes in ZMMU (Keleinikova 1976: 190). Synonymy established by Horn (1875: 131).

Trechus tahoensis Casey, 1918: 407. Type locality: "Lake Tahoe [Placer County], California" (original citation). Lectotype (♀), designated by Lindroth (1975: 114), in USNM [# 46076]. Synonymy established by Jeannel (1927: 169), confirmed by Lindroth (1961a: 197).

Trechus chalybaeus brachyderus Jeannel, 1931: 422. Type locality: "Bears Paw Mountains, Montana" (original citation). Holotype (♂) in USNM [# 43660]. Synonymy established by Lindroth (1961a: 197).

Distribution.

This species ranges from the Aleutian Islands in Alaska (Lindroth 1961a: 198) south to the Sierra Nevada in eastern California (Inyo and Tulare Counties, CAS; Casey 1918: 407, as Trechus tahoensis ; Dajoz 1990: 158) and to New Mexico along the Rocky Mountains (Snow 1885: 67; Fall and Cockerell 1907: 158).

Records.

CAN: AB, BC (QCI, VCI) USA: AK, CA, CO, ID, MT, NM, NV, OR, WA, WY