Habitat, Food Source(s), Damage: Nymphs and adults suck juices primarily from seeds of boxelder trees, but also suck juices from fruits of other trees (e.g., plum, cherry, apple, peach, grape, chinaberry, western soapberry, ash and maple). Young fruit may be scarred or dimpled from feeding activities. In the fall, large nymphs and winged adults leave host plants in search of overwintering habitats. They enter homes through cracks and crevices around doors and window frames and around the foundation. They also overwinter in tree holes and in piles of debris around the landscape. In the spring adults reappear and often sun themselves on light colored walls. In homes, the bugs may stain curtains, paper and other objects with fecal material.