Broad-headed Bug

Scientific Name: Alydus pilosulus

Order & Family: Hemiptera, Alydidae

Size: 10 - 15 mm in length

Broad-headed Bug

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