Identify Your Pest

Boxelder Bug Size - How to Get Rid of Boxelder Bugs

BoxElder Bug

Quick Facts


Full size can reach 1/2 in. (13 mm).

Preferred Habitat

Enjoy sunny, warm areas like trees, stones, and bushes and try to move inside during winter to find warmth and food.

Known Health Issues

Bites often look and feel like a bite caused by a mosquito.
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Boxelder bugs enjoy the warm weather and sunning themselves, so they choose to find areas in and around your home such as plants, trees, shrubs, and rocks to eat and absorb warmth. Due to not enjoying the cold, these pests try to invade your home in search of warm areas during winter. Your home’s heater will often trick them into thinking it is spring and will cause them to wake up from their dormant state to search for food.

Boxelder bugs have long black bodies with red marks and can grow to be up to 1/2 in. (13 mm). They are not poisonous and do not cause any negative health effects on humans, although their bites imitate that of a mosquito and can have slight itching and irritation. If these pests are causing a nuisance in your home, call Miller Pest & Termite today!