Common name: Boxelder Bug
Scientific name: Order Heteroptera, family Rhopalidae, Boisea spp.
Identification: True bugs with grayish brown to black coloring and red highlighting.
Biology and life cycle: Eggs are laid in cracks of bark and on leaves. Nymphs are bright red. Adult females hibernate in protected spots and produce two or more generations.
Habitat: Building structures, boxelder and ash trees. Will enter structures especially in the fall.
Feeding habits: Feed mainly on the seeds of female boxelder trees. They will also eat foliage and flowers of ornamental plants and orchard crops. Injury is usually minimal.
Economic importance: Little if any.
Natural control: Birds and lizards.
Organic control: Plant oil products will kill them, if it’s really necessary.
Insight: Cut down the boxelder trees if you really don't want these bugs around. They may become a nuisance by congregating on trees, porches, and walls. They don't bite or harm anything around the house.