Polyhymno exalbida is a moth of the family Gelechiidae. It was described by Mikhail Mikhailovich Omelko and Natalia Viktorovna Omelko in 2011. It is found in the Russian Far East (Primorsky Krai)."New and interesting data on gelechiid moths of the genus Polyhymno Chambers (Lepidoptera, Gelechiidae) from Primorskii Krai".
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