Bug Identifier
Pseudoscorpion
Community identification

Pseudoscorpion

Chelifer cancroides

Order & Family
Order: Pseudoscorpiones, Family: Cheliferidae
Size
2 to 8 millimeters (0.08 to 0.31 inches)
See this bug in the Encyclopedia

Natural Habitat

Found globally in leaf litter, under bark, in caves, and frequently in homes, especially in bathrooms or libraries.

Diet & Feeding

Carnivorous; feeds on small arthropods like silverfish, mite, booklice, and fly larvae using venom-filled pincers.

Behavior Patterns

Solitary and nocturnal hunters that use phoresy (hitching rides on larger flying insects) to travel to new locations; they produce silk from glands near their jaws to build cocoons for molting or wintering.

Risks & Benefits

Completely harmless to humans and pets as they lack a stinger and their pincers cannot pierce skin; highly beneficial to ecosystems and homes by controlling populations of carpet beetles and booklice.