Minute Pirate Bug

Scientific Name: Orius insidiosus

Order & Family: Hemiptera: Anthocoridae

Size: 2mm to 5mm (approximately 1/12 to 1/5 inch)

Minute Pirate Bug

Natural Habitat

Agricultural fields, gardens, woodlands, and urban areas during autumn; naturally found on flowers and crops.

Diet & Feeding

Generalist predator; primarily eats aphids, thrips, spider mites, and insect eggs. It may occasionally pierce plant tissue for moisture.

Behavior Patterns

They are highly mobile and active hunters. In late summer and autumn, they often migrate from drying vegetation and may land on humans, where they are known to bite probe-style.

Risks & Benefits

Benefits include excellent biological pest control in gardens and farms. The primary risk is a painful, itchy bite to humans; while they do not inject venom or transmit disease, the bite is surprisingly sharp for their small size.

Identified on: 4/1/2026