Chelifer equester, commonly known as the pseudoscorpion, is a small arachnid belonging to the order Pseudoscorpiones. It has a flattened body, measuring around 2-4 mm in length, with a pair of pincers resembling those of a scorpion. Pseudoscorpions are found worldwide, often inhabiting leaf litter, soil, and tree bark. They are beneficial predators, feeding on small insects and mites, making them valuable in controlling pest populations.