Ensign Wasp

Scientific Name: Evaniidae

Order & Family: Hymenoptera, Evaniidae

Size: 3mm to 7mm

Ensign Wasp

Natural Habitat

Urban and suburban areas, often found indoors near kitchen or bathroom areas where cockroaches are present.

Diet & Feeding

Adults feed on nectar and honeydew; larvae are predatory and eat the eggs inside cockroach oothecae.

Behavior Patterns

Solitary insects often seen jumping or walking on walls. They exhibit a characteristic 'pumping' motion of their small, oval-shaped abdomens while walking.

Risks & Benefits

They are highly beneficial to humans as they act as natural pest control by parasitizing and killing cockroach eggs. They do not sting humans or pets.

Identified on: 3/7/2026