Thread-Legged Bug

Natural Habitat

Often found in sheltered, dark locations such as attics, basements, sheds, and within spider webs. They are frequently seen on walls or hanging from webs.

Diet & Feeding

Carnivorous predators that feed on small insects and spiders. They often steal prey caught in spider webs (kleptoparasitism) or eat the spiders themselves.

Behavior Patterns

They are stealth hunters with grasping (raptorial) front legs similar to a praying mantis. They move slowly and often bob or sway to mimic wind movement or debris in a spider web.

Risks & Benefits

Generally beneficial as they eat household pests and spiders. They pose no significant risk to humans; while capable of biting if mishandled, their bite is harmless and rare compared to other assassin bugs.

Identified on: 3/8/2026