Elachista is a genus of gelechioid moths described by Georg Friedrich Treitschke in 1833. It is the type genus of the grass-miner moth family (Elachistidae). This family is sometimes (in particular in older sources) circumscribed very loosely, including for example the Agonoxenidae and Ethmiidae which seem to be quite distinct among the Gelechioidea, as well as other lineages which are widely held to be closer to Oecophora than to Elachista and are thus placed in the concealer moth family Oecophoridae here.AEBR (2008), FE (2009)
These grass-miners are very small moths with the "feathery" hindwings characteristic of their family. They are essentially found worldwide, except in very cold places and on some oceanic islands; as usual for Gelechioidea, they are most common in the Palearctic however. They usually have at least one, sometimes as many as three light bands running from leading to trailing edge of their forewing uppersides. Some species, however, have upper forewings that are mostly white.AEBR (2008), FE (2009), and see references in Savela (2008)
Selected species Not all species of this large genus have been discovered yet, let alone validly described and named. Several small genera, e.g. Biselachista and Cosmiotes, are here included in Elachista as junior synonyms (see below). They seem to be at least as closely related to E. bifasciella (the type species of the present genus) than other species commonly placed here, if not actually closer. In addition, Elachista contains several cryptic species complexes – such as the one around E. dispunctella and E. triseriatella – whose systematics and taxonomy are still not fully resolved.Kusdas & Reichl (1973): 194, Pitkin & Jenkins (2004), AEBR (2008), FE (2009), and see references in Savela (2008)
A number of Elachista species have been assigned to one of several groups, which may or may not be monophyletic, and whose names in the literature do not consistently follow the usual taxonomic practice (i.e. using as namesake the group-member which was described first). Some of these groups are placed in either of the two large subgenera Elachista (Aphelosetia) and Elachista (Elachista). Other proposed subgenera – the small Elachista (Dibrachia) and Elachista (Hemiprosopa) – are here included in the species of unclear relationships; like some small species-groups, they stand a chance of rendering the two larger subgenera paraphyletic if accepted as distinct, but seem too unlike them to warrant placement in either.FE (2009), Wikispecies (2009-SEP-27), and see references in Savela (2008)
Subgenus Elachista (Aphelosetia)argentella group (sometimes in bedellella group)
Elachista acenteta Elachista achrantella Elachista adempta Elachista adianta Elachista anagna Elachista aphyodes Elachista apina Elachista arena Elachista argentella (type of Aphelosetia) Elachista argillacea Elachista aspila Elachista aurocristata Elachista conidia Elachista coniophora Elachista controversa Elachista dissona Elachista epimicta Elachista granosa Elachista griseicornis Elachista hololeuca Elachista inopina Elachista ischnella Elachista lamina Elachista lomionella Elachista loriella Elachista louisella Elachista lurida Elachista nubila Elachista nucula Elachista orestella Elachista ossuaria Elachista patriodoxa Elachista perniva Elachista ripula Kaila, 1998 Elachista sabulella Elachista scobifera Elachista sincera Elachista spatiosa Elachista symmorpha Elachista synopla Elachista thelma Elachista triangulifera Elachista triatomea Elachista virgatula Kaila, 1997 (type of Aphigalia)bedellella/unifasciella group (including collitella group)
Elachista adscitella Stainton, 1851 Elachista antonia Kaila, 2007 Elachista bedellella (Sircom, 1848) Elachista bisulcella (Duponchel, ) Elachista bruuni Traugott-Olsen, 1990 Elachista camilla Kaila, 2007 Elachista cahorsensis Traugott-Olsen, 1992 Elachista chrysodesmella Zeller, 1850 Elachista cingillella (Herrich-Schäffer, 1855) Elachista collitella (Duponchel, ) Elachista crocogastra Meyrick, 1908 Elachista dispilella Zeller, 1839 Elachista dispunctella (Duponchel, ) Elachista distigmatella Frey, 1859 Elachista dorinda Kaila, 2007 Elachista fasciola Parenti, 1983 Elachista festucicolella Zeller, 1853 Elachista gangabella Zeller, 1850 Elachista gregori Traugott-Olsen, 1988 Elachista heinemanni Frey, 1866 (sometimes in E. subalbidella; tentatively placed here) Elachista istanella Nielsen & Traugott-Olsen, 1987 Elachista laetella Rebel, 1930 (sometimes in E. subalbidella; tentatively placed here) Elachista levasi Sruoga, 1998 Elachista littoricola Le Marchand, 1938 Elachista lugdunensis Frey, 1859 Elachista metella Kaila, 2002 Elachista nedaella Traugott-Olsen, 1985 Elachista nitidulella (Herrich-Schäffer, 1855) Elachista nolckeni Sulcs, 1992 (tentatively placed here) Elachista obliquella Stainton, 1854 Elachista pollinariella Zeller, 1839 Elachista pollutissima Staudinger, 1880 Elachista pullicomella Elachista purella Sruoga, 2000 Elachista revinctella Zeller, 1850 Elachista rudectella Stainton, 1851 Elachista slivenica Kaila, 2007 Elachista squamosella (Duponchel, ) Elachista subalbidella Elachista subocellea Elachista sutteri Kaila, 2002 Elachista tinctella Sinev & Sruoga, 1995 Elachista titanella Kaila & Jalava, 1994 Elachista triseriatella Stainton, 1854 Elachista unifasciella (Haworth, 1828) Elachista versicolora Kaila, 2007 Elachista cf. dispunctella 'Volgograd Oblast'See references in Savela (2008)Elachista (Aphelosetia) incertae sedis
Elachista acutella Kaila, 2003 Elachista aeruginosa Parenti, 1981 Elachista afghana Parenti, 1981 Elachista agelensis Traugott-Olsen, 1996 Elachista amparoae Traugott-Olsen, 1992 Elachista amseli Rebel, 1833 Elachista andorraensis Traugott-Olsen, 1988 Elachista anitella Traugott-Olsen, 1985 Elachista arduella Kaila, 2003 Elachista arenbergeri Traugott-Olsen, 1988 Elachista atrisquamosa Staudinger, 1880 Elachista baldizzonei Traugott-Olsen, 1996 Elachista baldizzonella Traugott-Olsen, 1985 Elachista bazaella Traugott-Olsen, 1992 Elachista bazaensis Traugott-Olsen, 1990 Elachista bengtssoni Traugott-Olsen, 1992 Elachista berndtiella Traugott-Olsen, 1985 Elachista bigorrensis Traugott-Olsen, 1990 Elachista blancella Traugott-Olsen, 1992 Elachista casascoensis Traugott-Olsen, 1992 Elachista catalana Parenti, 1978 Elachista catalunella Traugott-Olsen, 1992 Elachista chamaea Kaila, 2003 Elachista chionella Mann, 1861 Elachista cirrhoplica Kaila, 2012 Elachista clintoni Traugott-Olsen, 1992 Elachista constitella Frey, 1859 Elachista contisella Chrétien, 1922 Elachista cornuta Parenti, 1981 Elachista cretula Kaila, 2011 Elachista cuencaensis Traugott-Olsen, 1992 Elachista curonensis Traugott-Olsen, 1990 Elachista dalmatiensis Traugott-Olsen, 1992 Elachista deceptricula Staudinger, 1880 Elachista derbendi Parenti, 1981 Elachista disemiella Zeller, 1847 Elachista drenovoi Parenti, 1981 Elachista dumosa Parenti, 1981 Elachista elsaella Traugott-Olsen, 1988 Elachista enochra Kaila, 2011 Elachista esmeralda Parenti, 1981 Elachista exigua Parenti, 1978 Elachista filicornella Kaila, 1992 Elachista flavescens Parenti, 1981 Elachista fuscibasella Chrétien, 1915 Elachista galactitella Eversmann, 1844 Elachista galbina Kaila, 2012 Elachista gebzeensis Traugott-Olsen, 1990 Elachista gerdmaritella Traugott-Olsen, 1992 Elachista gibbera Kaila, 2003 Elachista gielisi Traugott-Olsen, 1992 Elachista gilvula Kaila, 2012 Elachista glaseri Traugott-Olsen, 1992 Elachista gormella Nielsen & Traugott-Olsen, 1987 Elachista graeca Parenti, 2002 Elachista grandella Traugott-Olsen, 1992 Elachista grotenfelti Kaila, 2012 Elachista habeleri Traugott-Olsen, 1990 Elachista hallini Traugott-Olsen, 1992 Elachista hedemanni Rebel, 1899 Elachista heringi Rebel, 1899 Elachista hispanica Traugott-Olsen, 1992 Elachista ilicrina Falkovich, 1986 Elachista imbi Traugott-Olsen, 1992 Elachista intrigella Traugott-Olsen, 1992 Elachista jaeckhi Traugott-Olsen, 1990 Elachista jubarella Kaila, 2011 Elachista kabuli Parenti, 1981 Elachista karsholti Traugott-Olsen, 1992 Elachista kasyi Parenti, 1981 Elachista klimeschiella Parenti, 2002 Elachista latipenella Sinev & Budashkin, 1991 Elachista lerauti Traugott-Olsen, 1992 Elachista liskai Kaila, 2011 Elachista louiseae Traugott-Olsen, 1992 Elachista luqueti Traugott-Olsen, 1992 Elachista maboulella Chretien, 1915 Elachista maculata Parenti, 1978 Elachista madridensis Traugott-Olsen, 1992 Elachista mannella Traugott-Olsen, 1992 Elachista manni Traugott-Olsen, 1990 Elachista melancholica Frey, 1859 Elachista michelseni Traugott-Olsen, 1992 Elachista microdigitata Parenti, 1983 Elachista minusculella Traugott-Olsen, 1992 Elachista moroccoensis Traugott-Olsen, 1992 Elachista modesta Parenti, 1978 Elachista multipunctata Sruoga, 1990 Elachista multipunctella Traugott-Olsen, 1992 Elachista neapolisella Traugott-Olsen, 1985 Elachista nevadensis Parenti, 1978 Elachista nielspederi Traugott-Olsen, 1992 Elachista nuraghella Amsel, 1951 Elachista occidentella Traugott-Olsen, 1992 Elachista occulta Parenti, 1978 Elachista ohridella Parenti, 2001 Elachista olemartini Traugott-Olsen, 1992 Elachista olschwangi Kaila, 2003 Elachista oukaimedenensis Traugott-Olsen, 1988 Elachista ozeini Parenti, 2004 Elachista parvula Parenti, 1978 Elachista passerini Traugott-Olsen, 1996 Elachista phragmitella Sruoga, 1992 Elachista pocopunctella Traugott-Olsen, 1992 Elachista pollutella Duponchel, 1843 Elachista povolnyi Traugott-Olsen, 1992 Elachista punctella Traugott-Olsen, 1992 Elachista rikkeae Traugott-Olsen, 1992 Elachista rissaniensis Traugott-Olsen, 1992 Elachista rutjani Kaila, 2011 Elachista senecai Traugott-Olsen, 1992 Elachista sinevi Traugott (Sruoga, 1992) Elachista skulei Traugott-Olsen, 1992 Elachista spumella Caradja, 1920 Elachista steueri Traugott-Olsen, 1990 Elachista subula Parenti, 1991 Elachista svenssoni Traugott-Olsen, 1988 Elachista szocsi Parenti, 1978 Elachista teruelensis Traugott-Olsen, 1990 Elachista totanaensis Traugott-Olsen, 1992 Elachista toveella Traugott-Olsen, 1985 Elachista tribertiella Traugott-Olsen, 1985 Elachista turkensis Traugott-Olsen, 1990 Elachista unicornis Parenti, 1991 Elachista vanderwolfi Traugott-Olsen, 1992 Elachista varensis Traugott-Olsen, 1992 Elachista vartianae Parenti, 1981 Elachista vegliae Parenti, 1978 Elachista veletaella Traugott-Olsen, 1992 Elachista vivesi Traugott-Olsen, 1992 Elachista vulcana Kaila, 2011 Elachista wadielhiraensis Traugott-Olsen, 1992 Elachista zuernbaueri Traugott-Olsen, 1990
Subgenus Elachista (Atachia) These are sorted in the presumed phylogenetic sequence.Kaila (2011)
gerasmia group, gerasmia section Incertae sedis Elachista magidina Elachista floccella Elachista velutina Elachista carcharota Elachista crenatella Elachista bidens Elachista alampeta Elachista cursa Elachista eriodes Elachista illota Elachista ceratiola Elachista bilobella Elachista filiphila Elachista merista Elachista lopadina Elachista patania Elachista indigens Elachista cf. indigens Elachista averta Elachista anolba Elachista flavicilia Elachista tetraquetri Elachista effusi Elachista deusta Elachista rubiginosae Elachista ophelma Elachista catagma Elachista ruscella Elachista sarota Elachista syntomella Elachista scopulina Elachista nodosae Elachista discina
Elachista cynopa complex Elachista ligula Elachista toryna Elachista ascidiella Elachista repanda Elachista prolatella Elachista protensa Elachista campsella Elachista spinodora Elachista glossina Elachista opima Elachista pharetra Elachista rudicula Elachista corbicula Elachista mystropa Elachista trulla Elachista euthema Elachista cynopa Elachista epartica Elachista zeta Elachista chilotera Elachista mundula