Elachista perniva Kaila, 1997
Elachista perniva Kaila, 1997: 47 . Type locality: U.S.A., Wyoming, Newcastle (Kaila 1997: 47). Holotype ♂, in USNM.
Subgenus: Aphelosetia; argentella species group.
Distribution: Nearctic. Canada (Alberta, Saskatchewan), U.S.A. (Colorado, Wyoming).
Larval host plant(s): unknown.
Figs.: Kaila (1997).