Polyphylla occidentalis is a species of scarab beetle in the family Scarabaeidae.

[1] The beetle is widespread in the southeastern United States, and is active throughout the warm summer months.

A brownish beetle with white stripes,[6] its adult size ranges from 22 to 26 mm.

[7] The males' antennae have rather large clubs.

The adults feed on pines, while the larvae eat sedge roots.