Elachista arduella is a moth of the family Elachistidae. It is found in Russia (the Southern Ural Mountains).
The wingspan is about 7.6 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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