Boxelder Bug

Natural Habitat

Found near female boxelder trees, as well as maple and ash trees; often seeks shelter in buildings during winter.

Diet & Feeding

Herbivorous, feeding primarily on the seeds, flowers, and leaves of host trees (mainly boxelder trees).

Behavior Patterns

Diurnal insects known for forming large, sun-seeking aggregations on warm surfaces like south-facing walls in autumn.

Risks & Benefits

Generally harmless to humans; considered a nuisance pest when they invade homes. They do not cause significant damage to trees or property.

Identified on: 6/3/2026