Xysticus funestus, the mournful ground crab spider, the sad ground crab spider or the deadly ground crab spider is a species of ground crab spider in the family Thomisidae. It is found in North America.Dean D.A. (2016). "Catalogue of Texas spiders". ZooKeys 570: 1-703.
Despite one of the suggested common names - ‘deadly ground crab spider’, Xysticus funestus poses no threat to humans nor common pets. Bites are extremely rare due to the spider's natural avoidance of humans, and none of the group have bites that are medically significant for humans - typically only causing minor swelling and redness at the wound site.
References
Bradley, Richard A. (2012). Common Spiders of North America. University of California Press. Ubick, Darrell (2005). Spiders of North America: An Identification Manual. American Arachnological Society.
External links
NCBI Taxonomy Browser, Xysticus funestus