Springtails, also called Snow fleas, range from black to silver-gray, depending on the species; and feed on algae, fungi, and decaying plant materials. Their most distinctive character, is the furcula or tail-like mechanism attached to the tip of the abdomen, which Springtails will snap down on to a surface; to spring themselves into the air.
Springtails are tiny insects (usually less than 1/8 inch long), that thrive in damp locations. When found in buildings and structures, their presence may indicate excessive moisture conditions; inside of walls or crawl spaces, under sinks, or around indoor plants. Springtails live in the soil, in leaf mold, under bark, in decaying logs and on the surface of freshwater pools, where they commonly appear in vast numbers; seemingly overnight.
Aside from allergies and dermatitis in a small percentage of people, Springtails are harmless to humans and pose no aggressive pest control problems; for home owners and property managers.