Bug Identifier
Boxelder Bug
Community identification

Boxelder Bug

Boisea trivittata

Order & Family
Hemiptera: Rhopalidae
Size
Approximately 12.5 mm (0.5 inches) in length
See this bug in the Encyclopedia

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.