A pseudoscorpion, a tiny arachnid resembling a scorpion but lacking a tail, belonging to the order Pseudoscorpiones.
From Greek 'chele' (claw/pincer) plus Latin 'ferre' (to carry/bear), literally meaning 'claw-bearer.' Named for the prominent pincers on the front of their bodies.
Pseudoscorpions like chelifers are often called 'book scorpions' because they hide in libraries and old papers hunting mites and insects—they're tiny (1-2mm) predators that have been hitchhiking in human spaces for millennia without most people ever seeing one!
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