Broad-headed Bug
Scientific Name: Alydus pilosulus
Order & Family: Hemiptera, Alydidae
Size: 10 - 15 mm in length

Natural Habitat
Typically found in weedy fields, meadows, and agricultural areas with legumes or grasses.
Diet & Feeding
They feed on the seeds of plants, particularly from the legume family (Fabaceae), using piercing-sucking mouthparts.
Behavior Patterns
As nymphs, many species in this family exhibit ant-mimicry to avoid predators. Adults are active fliers and can produce a strong-smelling defense odor when threatened.
Risks & Benefits
They are generally harmless to humans, though they can be minor agricultural pests on certain crops like soybeans. They do not pose a health risk to people or pets.
Identified on: 3/11/2026