It will be springtails.Occasionally, springtails will migrate indoors during periods of heavy rains, or during prolonged hot, dry spells. If you have houseplants, they may have been living in the potting soil and simply escaped their pots. Homeowners may also find springtails around the outside of their homes, in driveways, or near the swimming pool. Like most decomposers, springtails prefer a moist, humid environment. When springtails invade homes, it's usually because conditions outdoors have become inhospitable, and they're seeking a location with appropriate humidity and moisture.