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Xysticus Funestus
''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 The Thomisidae are a family of spiders, including about 170 genera and over 2,100 species. The common name crab spider is often linked to species in this family, but is also applied loosely to many other families of spiders. Many members of thi .... 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 ...
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Xysticus
''Xysticus'' is a genus of ground crab spiders described by C. L. Koch in 1835, belonging to the order Araneae, family Thomisidae. The genus name is derived from the Ancient Greek root ''xyst'', meaning "scraped, scraper". Description ''Xysticus'' and '' Coriarachne'' are dark brown or reddish-brown crab spiders often encountered on weeds or trees. While similar to the 'flower spiders', they tend to have shorter, sturdier legs. Many, but not all, species have abdomens more patterned than most ''Thomisus'' species, rather like some of the ''Synema'' species. Some however, that are more terrestrial, resemble earth in colour and texture. Most species of the genus Xysticus are small to medium sized spiders. They show a sexual dimorphism in size. Females of typical species reach a maximum of of body length, while their males are about long, about half the size of the females. The basic colour of these species is usually brown, beige or gray. The prosoma is sometimes slightly smal ...
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Thomisidae
The Thomisidae are a family of spiders, including about 170 genera and over 2,100 species. The common name crab spider is often linked to species in this family, but is also applied loosely to many other families of spiders. Many members of this family are also known as flower spiders or flower crab spiders. Description Members of this family of spiders do not spin webs, and are ambush predators. The two front legs are usually longer and more robust than the rest of the legs. The back two legs are smaller, and are usually covered in a series of strong spines. They have dull colorations such as brown, grey, or very bright green, pink, white or yellow. They gain their name from the shape of their body, and they usually move sideways or backwards. These spiders are quite easy to identify and can very rarely be confused with Sparassidae family, though the crab spiders are usually smaller. Etymology Spiders in this family are called "crab spiders" due to their resemblance to crabs ...
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