About Xysticus funestus Keyserling, 1880
Xysticus funestus Keyserling, 1880 is a species of ground crab spider belonging to the family Thomisidae. It has several common names: the mournful ground crab spider, the sad ground crab spider, and the deadly ground crab spider. This species is found in North America. Despite carrying the common name "deadly ground crab spider", Xysticus funestus is not a threat to humans or common pets. Bites from this spider are extremely rare, as it naturally avoids humans. No bites from spiders in this group are medically significant to humans; bites typically only cause minor swelling and redness at the bite site.