Boxelder Bug nymph

Natural Habitat

Commonly found on boxelder trees, maple trees, and ash trees; they often congregate on sun-facing walls of buildings.

Diet & Feeding

Herbivorous; they primarily feed on the seeds, leaves, and soft twigs of boxelder, maple, and ash trees.

Behavior Patterns

They are gregarious and often form large clusters on sunny surfaces. They overwinter as adults in dry, sheltered areas like houses or woodpiles.

Risks & Benefits

Harmless to humans and pets, as they do not bite or sting. They are considered a nuisance pest when they enter homes in large numbers. In the ecosystem, they serve as a food source for some birds and spiders.

Identified on: 6/21/2026