Elachista pigerella (Herrich-Schäffer, 1854)
Symmoca pigerella Herrich-Schäffer, 1854: 111 . Type locality: Germany, Frankfurt am Main. Deposition of type material unknown.
Elachista pigerella: Traugott-Olsen & Nielsen (1977: 67) .
Poeciloptilia fuscochrella Herrich-Schäffer, 1855: 313 . Type locality: Switzerland, Zürich. Lectotype ♂, as Elachista fuscochreella Frey, 1856: 304, designated by Parenti (1977: 32), in NHMUK.
Elachista muehligiella [mühligiella] Frey, 1856: 304. Type locality: Switzerland, Zürich (Frey 1856: 305). Lectotype ♂ designated by Parenti (1977: 32), in NHMUK. Synonymized by Parenti (1977: 32).
Oecophora thorencella Millière, 1876: 346 . Type locality: France, Thorenc, type (s) in MNHN. Synonymized by Leraut (1983: 38).
Oecophora incolorella Constant, 1890: 10; pl. 1, fig. 7. Type locality: France, Alpes-Maritimes. Five syntypes, in MNHN. Synonymized by Leraut (1983: 38).
Atachia bilbaensis Rebel, 1893: 58 . Type locality: Spain, Bilbao (Rebel 1893: 58). (Syn) types in NHMW. Synonymy indicated by Leraut (1997: 107).
Elachista fuscogrisella Rebel, 1936: 100 . Type locality: Italy, Sardinia, Aritzo (Rebel 1936: 100). Holotype ♂, in NHMW. Synonymized by Traugott-Olsen & Nielsen (1977: 65).
‡ Elachista fuscochreella . Misspelling (Frey 1856: 304).
Subgenus: Atachia; pigerella species group.
Distribution: Palearctic. Austria, Bulgaria, Czech Republic, France, Germany, Greece (Continent, Crete), Italy, Portugal, Spain, Switzerland, Tunisia.
Larval host plant(s): Carex flacca Schreber (Cyperaceae) (Steuer 1973).
Figs.: Traugott-Olsen (1977), Steuer (1973).