Elachista albidella Nylander, 1848

Elachista albidella Nylander, 1848: 150 . Type locality: Finland, Nylandia, Helsinki (Nylander 1848: 150). Holotype ♀, in MZH.

Aphelosetia rhyncosporella Stainton, 1848: 2165 . Type locality: Great Britain, “North of England, Scotland ”. Undefined number of syntypes, in NHMUK. Synonymized by Wolff (1970: 175).

Poeciloptilia uliginosella Herrich-Schäffer, 1855: 310 . Type locality: Switzerland, Zürich (Herrich-Schäffer, 1855: 310). Holotype, sex not stated. Deposition unknown. Synonymized by Frey (1859: 281).

Elachista tanyopis Meyrick, 1932b: 218 . Type locality: Canada, Ontario, Parry Sound (Meyrick 1932b: 18). Holotype ♂, in NHMUK.

Elachista tanyopa, incorrect subsequent spelling (Hodges 1978: pl. 2, fig. 9).

Elachista rhyncosporella: Stainton (1858a: 315) .

Biselachista albidella: Traugott-Olsen & Nielsen (1977: 267) .

Subgenus: Elachista; tetragonella species group.

Distribution: Holarctic. Austria, Canada (Alberta, Newfoundland, Manitoba, New Brunswick, Nova Scotia, Ontario, Quebec), Croatia, Czech Republic, Denmark, Estonia, Finland, Germany, Hungary, Ireland, Latvia, Lithuania, Norway, Poland, Romania, Russia (European part, Siberia), Slovakia, Sweden, Switzerland, U.K. (England, Scotland, Wales), U.S.A. (Michigan).

Larval host plant(s): Trichophorum cespitosum (L). Hartman, Carex riparia Curtis, C. acuta L., C. flacca Schreber, C. panicea L., Eleocharis palustris (L.) Roemer & Schultes, Eriophorum angustifolium Honckeny (all Cyperaceae) (Stainton 1858a; Frey 1859; E. Hering 1891; Lhomme 1951; Emmet 1991; Parenti & Varalda 1994).

Figs.: Traugott-Olsen & Nielsen (1977), Hodges (1978), Biesenbaum (1995), Bland (1996), Kaila (1996), Sugisima (1999), Parenti & Pizzolato (2015b).