Ten-lined June Beetle

Natural Habitat

Found in western North America, particularly in sandy soil areas, coniferous forests, and gardens near forested areas.

Diet & Feeding

Adults feed on the needles of coniferous trees (pines); larvae (grubs) live underground and feed on the roots of shrubs and trees.

Behavior Patterns

Adults are nocturnal and frequently attracted to porch lights. They are known for making a distinctive loud hissing sound when disturbed or touched by forcing air out of their spiracles.

Risks & Benefits

Generally harmless to humans; they cannot bite or sting, though their claws feel scratchy. While they are important ecosystem decomposers as larvae, high populations can occasionally damage the roots of ornamental plants or crops.

Identified on: 6/10/2026