Bed Bug

Primarily human dwellings, hiding in mattress seams, bed frames, cracks, and crevices near sleeping areas.

Strictly blood, primarily from humans but occasionally from other warm-blooded animals.

Nocturnal insects that emerge at night to feed. They undergo incomplete metamorphosis (egg, nymph, adult) and can survive months without a meal.

Risks: Their bites cause itchy red welts and can lead to anxiety, insomnia, or allergic reactions. Benefits: None to the ecosystem; they are considered a major pest.