Elachista biatomella (Stainton, 1848)
Aphelosetia biatomella Stainton, 1848: 2165 . Type locality: England, Durham Downs, Bristol (Stainton 1848: 2165) . Types not stated in original description.
Elachista biatomella: Stainton (1849: 27) .
Poeciloptilia biatomella: Herrich-Schäffer (1855: 302, 310).
Subgenus: Elachista; tetragonella species group.
Distribution: Palearctic. Austria, Czech Republic, Denmark, France, Germany, Greece (Cyprus), Hungary, Ireland, Italy, Kazakhstan, Porugal, Russia (European part, Southern Siberia), Slovakia, Spain, Sweden, Switzerland, U.K. (England, Scotland, Wales), Ukraine.
Larval host plant(s): Carex flacca Schreber, C. prolixa Fries (Cyperaceae) (Stainton 1858b; Steuer 1980).
Figs.: Traugott-Olsen & Nielsen (1977), Steuer (1980) (larva), Biesenbaum (1995), Bland (1996).