Box Elder Bugs
Like Asian lady beetles, Boxelder bugs are a common sight for many homeowners in the spring and the fall. These bugs are about half an inch long and are black with red lines on their wings. Boxelders predominantly feed on seeds, specifically those of the boxelder tree for which they are named, but also the silver maple and some ash trees. They are frequently found in large numbers around the female, seed-bearing trees. They are also known to feed on the flowers and leaves of these trees, though it is less common.
Adult boxelder bugs lay their eggs in the spring, and these eggs hatch into the young of the species, called nymphs. These nymphs are much smaller than the adults and are more red than black. They nymphs will develop into adults over the summer, and mate and lay another batch of eggs that hatch in the fall.