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Boxelder Bug

Identification & Control

(Boisea trivittata)

Black insect with bright red lines along the wings and body commonly found on boxelder trees and homes.

Shows up in groups, uninvited, every fall without fail.

Associated Species

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Explore Similar Pests

Physical Appearance

  • Dark bug with red/orange lines
  • Often found in groups
  • Slow-moving

Common Locations

  • On sunny exterior walls
  • In wall voids and around windows for overwintering
  • Near boxelder and maple trees

Why They're a Problem

They’re a nuisance invader more than a ‘home infestation.’ Sealing and exterior treatments help during peak seasons.

Homeowner Tips

They’re a nuisance invader more than a ‘home infestation.’ Sealing and exterior treatments help during peak seasons.

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Black insect with bright red lines along the wings and body commonly found on boxelder trees and homes.
Boxelder Bug
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Boxelder Bug

Occasional Invaders

  • Dark bug with red/orange lines
  • Often found in groups
  • Slow-moving
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