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Pest NameDescription 
PseudoscorpionsPseudoscorpionsPseudoscorpions are flattened, oval-shaped, and related to spiders. Pseudoscorpions are commonly found in houses but also occur outside under loose bark, dead leaves, etc. Although these tiny creatures (usually in the neighborhood of 1/8 inch long) somewhat resemble true scorpions, they lack a stinging mechanism and are thus harmless. They feed mostly on small insects, and are therefore beneficial. Pseudoscorpions spin small, disk-shaped, whitish, cocoon-like structures in which they lay eggs, overwinter, or shed their skins. These cocoon-like structures may be found in various locations (floor joists, firewood, etc.) where pseudoscorpions have been present.