Urticating hairs <!-- google_ad_client = "ca-pub-2327677141881672"; /* Short title Links */ google_ad_slot = "3055805829"; google_ad_width = 468; google_ad_height = 15; //-->

Urticating hairs are barbed hairs usually found on New World tarantulas. Most commonly used as a first line of defense against perceived threats, they can be extremely irritating, especially to eyes and any mucous membranes.