Taxonomy and identification of Elachista cingillella (Herrich- Schäffer, 1855) and its close relatives (Lepidoptera: Elachistidae), with descriptions of two new species

The Elachista cingillella complex is defined and diagnosed. The identity of E. cingillella (Herrich-Schäffer, 1855) is clarified, and E. densicornella Hodgkinson, 1879 is confirmed to be a junior synonym of it. Redescriptions are given for the closely related, little known or misunderstood species E. fasciola Parenti, 1983 and E. nedaella Traugott-Olsen, 1985. Elachista metella Kaila sp. n. is described from Croatia and E. sutteri Kaila sp. n. from Samos, Greece. E. cingillella is a rarely found species distributed in central and northern Europe. All checked records of it from the Mediterranean region are based on misidentified specimens of E. metella sp. n., which is widely distributed in southern Europe and southern parts of central Europe. E. fasciola Parenti is distributed from Eastern Europe to Japan. E. nedaella Traugott-Olsen is only known from Crete, E. sutteri sp. n. from eastern Greece