Homeowner Guide to Idaho’s Arachnids Around the Home and Field
BUL-1094
BY Chris A. Hamilton
September 1, 2025
Arachnids are some of the most misunderstood and feared organisms, though the vast majority of them are harmless to humans. Idaho is home to at least thirteen unique spider species, with only one (black widow spider) that is medically important to humans. Learn what arachnids are, which ones are commonly found in Idaho, and how to manage the storied creatures in this comprehensive, thirty-six-page homeowners’ guide to Idaho’s spiders. Full-color photography and other illustrations simplify their identification the next time one creeps across the floor.