Boxelder Bug (Nymphs)

Natural Habitat

Commonly found on boxelder, maple, and ash trees. They often congregate in large groups on wood, leaf litter, or the sunny sides of buildings in autumn.

Diet & Feeding

Primarily seed-eating, focusing on the seeds and flowers of boxelder trees, but may also feed on maple and ash. They use piercing-sucking mouthparts.

Behavior Patterns

Nymphs (seen here) are bright red and lack fully developed wings. They are known for gathering in massive clusters to bask in the sun and seek overwintering sites in the fall.

Risks & Benefits

They are considered a nuisance pest when they enter homes but do not bite, sting, or cause significant damage to properties or plants. They serve as a food source for birds and small mammals.

Identified on: 5/1/2026