Carnivorous arthropods, chiefly terrestrial, of the class Arachnida including spiders, scorpions, mites, ticks, false scorpions, palpigrades, solifugids, and harvestmen.
Website for links to USGS and non-USGS websites with information on insects, arachnids, and annelids suitable for students and arranged by grade levels.
U.S. Department of the Interior |
U.S. Geological Survey