Polyphylla simoni is a species of beetle of the family Scarabaeidae.BioLib It is found in Thailand and Vietnam.
Description Adults reach a length of about 20–23 mm. They have an elongate, moderately convex body. The surface colour is chestnut brown, with the pronotum very slightly darker. The dorsal surface of the head, pronotum and scutellum is covered with whitish to pale ochrous scales, and the elytra with whitish scales.
Subspecies Polyphylla simoni simoni (Thailand) Polyphylla simoni kontumensis Kobayashi & Fujioka, 2016 (Vietnam)
Etymology The species is named in honor of Šimon, son of the first author.
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