Some bugs do feed on the blood of humans and animals, but the great majority are of no direct economic consequence to individuals. They do not cause damage to the household, infest the pantry nor eat fabrics or wood. They do not reproduce indoors. Many accidentally enter the home through windows, doors or other small openings, sometimes near night-lights. Others may enter to overwinter.
Many bugs have scent glands on the side of their body used in secreting odors.
It feeds primarily outdoors on alfalfa seeds. The tip of the triangular scutellum projects backwards between the wings and is rounded. Adults are predaceous, feeding on other insects. They are present from May to October and found on tall weeds, along streams and in dense woodlands. Harlequin Bug Adults are easily identified by the irregularly marked black and yellowish or orange color pattern.