Ten-lined June Beetle

Coniferous forests, woodlands, and sandy soils throughout western North America

Adults feed on conifer needles, while larvae (grubs) feed on the roots of shrubs and trees

They are nocturnal and attracted to bright lights. When threatened, they produce a distinct hissing sound by rubbing their abdomen against their wing covers.

They are harmless to humans. While larvae can damage roots of ornamental plants or orchards in large numbers, they generally serve as a food source for birds and small mammals.