Boxelder bugs in the autumn congregate on areas where the sun hits. Once they gather in large masses, they migrate to nearby buildings for the winter. They can hide in small cracks and crevices in walls to seek insulation from the cold temperatures. Boxelder bugs have a piercing-sucking mouthparts that can puncture skin, but are not known to bite.
BOXELDER BUG BOISEA TRIVITTATA (SAY)
Black with reddish or orange markings on dorsum .
Elongate-oval, somewhat flattened with head narrower than pronotum
1/2” (11-14 mm)