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🧬 Biological Classification (Kingdom to Species)Chelifer cancroides

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Pseudoscorpiones

Family

Cheliferidae

Genus

Chelifer

Species

Chelifer cancroides

Arachnida🥩 Carnivore

House pseudoscorpion

Chelifer cancroides (House pseudoscorpion · House pseudoscorpion)

🛡️ Conservation Status (IUCN Red List)NE (Not Evaluated)

Not Evaluated (NE) on the IUCN Red List yet.

Geological Era

Extant

Diet

Carnivore

Length · Height

3~4mm · No data

Mass · Top Speed

No data · No data

Habitat & Fossil Locality

Inside buildings and around human dwellings, widespread across North America and Europe

💡 Everyday Comparisons for Size, Mass & Speed

💡 Its body length of 4 mm is shorter than a grain of rice (about 5 mm) (Comparison). Its 8 mm span with pincers spread is about one and a half grains of rice.
💡 Materials from Colorado State University state that this is the pseudoscorpion most frequently found indoors and explain that this group catches small pests such as mites and springtails. Specimens of this species are also held at the Grant Museum of Zoology at University College London (UCL).

Reference standards: coach bus ~12 m, mid-size car ~4.9 m, compact car ~1 t, basketball hoop 3.05 m, credit card 8.56 cm.

#책전갈붙이#Chelifer cancroides

📖 1. Overview

The house pseudoscorpion is the pseudoscorpion most commonly found inside buildings; it has scorpion-like pincers but lacks a tail and venomous stinger.

🦴 2. Anatomy & Morphology

Its mahogany-brown body is 3–4 mm long, and with its long pincer-bearing pedipalps spread out, it spans about 8 mm across.

🔍 3. Ecology & Behavior

Pseudoscorpions usually wait in crevices for mites, springtails, and small insects, seize them with their pincers, immobilize them with venom, and liquefy them with digestive fluid to drink. In this species, the young ride on the mother's back for a while before molting and leaving.