Polyphylla crinita is a species of scarab beetle in the family Scarabaeidae. It is found in Central America and North America.
This species is commonly confused with Polyphylla decemlineata, also known as the ten-lined June beetle. The Long Haired June beetle (Polyphylla critina) has setae (hair) on the protonum. Polyphylla decemlineata, or the ten-lined June beetle, instead has scales on the protonum. Due to this difference, these species require high resolution photos for differentiation between the two.