Elachista nolckeni is a moth of the family Elachistidae. It is found from Estonia to the Pyrenees and Italy and from France to Poland and Slovakia. It is also found in Russia.Kaila, L., Nupponen, K., Junnilainen, J., Nupponen, T., Kaitila, J.-P. & Olschwang, V. 2003: Contribution to the fauna of Elachistidae (Lepidoptera) of the Southern Ural Mountains. - Entomol. Fennica 14: 65–90.
The wingspan is .
The larvae feed on Phleum phleoides. They mine the leaves of their host plant. References