Elachista olschwangi is a moth of the family Elachistidae that can be found in the Southern Ural Mountains of Russia.
The wingspan is 10–11.4 mm.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.
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