
Community identification
Broad-headed bug
Alydus sp. (likely Alydus eurinus or a related species)
- Order & Family
- Hemiptera, Alydidae
- Size
- Typically 10–15 mm long.
Natural Habitat
Grasslands, woodland edges, gardens, and other sunny areas with legumes; adults may wander indoors attracted to lights.
Diet & Feeding
Nymphs and adults suck plant fluids, especially from legumes such as beans and kudzu, using piercing-sucking mouthparts.
Behavior Patterns
Adults are elongate, long-legged, and often resemble ants or wasps; they bask, fly readily, and may emit an odor when disturbed. Nymphs commonly mimic ants and develop through incomplete metamorphosis.
Risks & Benefits
Generally harmless to people and not a significant indoor pest. They may occasionally damage legume plants, while serving as prey for birds, spiders, and predatory insects.