Bug Identifier
Mesquite Bug
Community identification

Mesquite Bug

Thasus neocalifornicus

Order & Family
Hemiptera: Coreidae
Size
40 mm to 55 mm (one of the largest true bugs in North America)
See this bug in the Encyclopedia

Natural Habitat

Found primarily in the Southwestern United States and Northern Mexico, specifically on or near mesquite trees.

Diet & Feeding

Herbivorous; specifically feeds on the sap of mesquite trees and succulent mesquite pods.

Behavior Patterns

Often found in large aggregations, especially as nymphs; they undergo incomplete metamorphosis and are most active during the summer months.

Risks & Benefits

Generally harmless to humans but can produce a pungent odor from scent glands if disturbed; they are considered a minor pest to mesquite trees but are an important part of the local desert ecosystem.