Ozyptila

Distinguished from the similar genus Xysticus by smaller body size. The pear-shaped, high carapace with vertical clypeus and the arrangement of eyes—posterior row more recurved than anterior, with anterior lateral eyes larger than others and sitting on low tubercles—are diagnostic. The median ocular quadrangle is longer than wide and parallel or wider anteriorly. Ozyptila praticola has been introduced to the Pacific Northwest of North America.

Free-living ground dwellers; occupies terrestrial habitats including leaflitter environments. Specific microhabitat preferences vary by species.

Widespread across Africa, Europe, North America, and Asia. The genus has a Holarctic distribution with particular concentration in the Palearctic; introduced populations of O. praticola established in the Puget Lowlands of Washington, U.S.A.

Ground-dwelling; does not construct webs for prey capture. As crab spiders, likely employs ambush predation, though specific hunting behaviors for most species are undocumented.

Ozyptila praticola is an introduced species in the Pacific Northwest of North America, representing a case of human-mediated range expansion. No economic or medical significance documented.

• XysticusSimilar ground-dwelling crab spider morphology; Ozyptila distinguished by smaller size and pear-shaped, elevated carapace

The genus name has been frequently misspelled as 'Oxyptila' in published accounts.

• crab spider
• ground-dwelling
• Thomisidae
• ambush predator
• introduced species
• Holarctic

• BugGuide
• Wikipedia
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life
• Synopsis of the Ozyptila rauda-group (Araneae, Thomisidae), with revalidation of Ozyptila balkarica Ovtsharenko, 1979
• Distribution of the introduced crab spider Ozyptila praticola (C. L. Koch, 1837) (Araneae: Thomisidae) in the Puget Lowlands of Washington, U.S.A.