Boxelder Bug

Natural Habitat

Typically found on and around boxelder trees, but also maple and ash trees. They often seek shelter in sunny areas on the exterior of homes, and may enter buildings to overwinter.

Diet & Feeding

Primarily feed on the sap of boxelder trees, especially new leaves, tender twigs, and developing seeds. They may also feed on maple and ash seeds.

Behavior Patterns

Gregarious, often congregating in large numbers, particularly in sunny spots. They are known to overwinter in sheltered locations, including inside homes, and become active again in spring. They are not known to bite or sting.

Risks & Benefits

Potential risks: Considered a nuisance pest when they enter homes in large numbers. While they don't cause structural damage or transmit diseases, their droppings can stain light-colored surfaces. Potential benefits: Generally not considered beneficial; they are a minor pest to boxelder trees.

Identified on: 10/8/2025