Pseudoscorpion

Scientific Name: Chelifer cancroides (common example)

Order & Family: Order: Pseudoscorpiones, Family: Cheliferidae

Size: 2 to 8 millimeters (0.08 to 0.31 inches)

Pseudoscorpion

Natural Habitat

Found in leaf litter, under tree bark, in soil, and occasionally inside homes in books or bathrooms.

Diet & Feeding

Carnivorous; feeds on small arthropods like booklice, mites, springtails, and fly larvae.

Behavior Patterns

Solitary predators that use large pedipalps (pinchers) to catch prey. They often practice phoresy, hitching rides on larger flying insects to move to new locations.

Risks & Benefits

Beneficial to ecosystems and homes as they preen small pests. They are harmless to humans and pets because they lack a stinger and their pinchers are too small to break skin.

Identified on: 6/14/2026