Ephysteris is a genus of the twirler moth family (Gelechiidae). Among these, it is assigned to tribe Gnorimoschemini of the subfamily Gelechiinae. Even though it is a rather diverse and widespread group, most of these small and inconspicuous moths were overlooked by scientists until the early 20th century. Almost 90 species are known today but new ones are still being discovered. These moths typically have forewing veins 2 and 3 separate but veins 6-8 originating from a common stalk. Somewhat less characteristically, their labial palps have a pointed tip and a furrow on the second segment. Ochrodia and Opacopsis were initially established as subgenera of Ephysteris but elevated to full genus status later. However, this is not universally accepted and both are included in the present genus here. Microcraspedus is another subgenus of Ephysteris, to which many of the European species are assigned; Echinoglossa is another. But before any of these can be accepted as subgenus or even distinct genus, the internal systematics of Ephysteris sensu lato are in need of review. Species The species of Ephysteris are: Subgenus Ephysteris Ephysteris promptella (Staudinger, 1859) Subgenus Microcraspedus Janse, 1958 Ephysteris deserticolella (Staudinger, 1871) Ephysteris diminutella (Zeller, 1847) Ephysteris iberica Povolny, 1977 Ephysteris insulella (Heinemann, 1870) Ephysteris insulella praticolella (Christoph 1872) Ephysteris inustella (Zeller, 1847) (type species of Opacopsis) Ephysteris inustella gredosensis (Rebel 1935) Ephysteris olympica Povolny, 1968 Unknown subgenus Ephysteris accentella Povolný, 1968 Ephysteris aellographa Janse, 1960 Ephysteris arabiae Povolný, 1968 Ephysteris aulacopis (Meyrick, 1923) Ephysteris brachypogon Meyrick, 1937 (type species of Microcraspedus) Ephysteris brachyptera Karsholt & Sattler, 1998 Ephysteris chretieni Povolný, 1968 Ephysteris confusa Povolný, 1968 Ephysteris curtipennis (Zerny, 1935) Ephysteris cyrenaica Povolný, 1981 Ephysteris eremaula (Janse, 1960) Ephysteris flavida Povolný, 1969 Ephysteris fontosus (Povolný, 1999) Ephysteris fuscocrossa Janse, 1960 Ephysteris gobabebensis Bidzilya & Mey, 2011 Ephysteris gondwana Bidzilya & Mey, 2011 Ephysteris infirma (Meyrick, 1912) Ephysteris juvenilis (Meyrick, 1929) Ephysteris kasyi Povolný, 1968 Ephysteris leptocentra (Meyrick, 1912) Ephysteris longicornis J.F.G.Clarke, 1986 Ephysteris montana H.H.Li & Bidzilya, 2008 Ephysteris neosirota (Janse, 1950) Ephysteris ornata (Janse, 1950) Ephysteris parasynecta Janse, 1963 Ephysteris powelli (Povolný, 1999) Ephysteris riadensis Povolný, 1968 Ephysteris ruth Povolný, 1977 Ephysteris scimitarella Landry, 2010 Ephysteris semiophanes (Meyrick, 1918) Ephysteris silignitis (Turner, 1919) Ephysteris sirota (Meyrick, 1908) Ephysteris speciosa Povolný, 1977 Ephysteris sporobolella Landry, 2010 Ephysteris suasoria (Meyrick, 1918) Ephysteris subcaerulea (Meyrick, 1918) Ephysteris subovata Povolný, 2001 Ephysteris surda (Meyrick, 1923) Ephysteris synecta (Meyrick, 1909) Ephysteris tenuisaccus K.Nupponen, 2010