Crab spider

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iCrab spiders
Ozyptila praticola
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Arachnida
Order: Araneae
Superfamily: Thomisoidea
Family: Thomisidae
Sundevall, 1833
Diversity
170 genera, 2026 species

Genera

Amyciaea
Aphantochilus
Coriarachne
Diaea
Heriaeus
Misumena
Misumenoides
Misumenops
Ozyptila
Pistius
Rejanellus
Synema
Thomisus
Tmarus
Xysticus
many others

Wikispecies has information related to:

Crab spiders make up the Arachnidae family Thomisidae. They are also commonly called "flower spiders" because they are most often found on flowers, lying in ambush for prey. Crab spiders do not build webs to trap prey, but are active hunters much like the jumping spiders (Salticidae).

They are called crab spiders because of their first two pairs of legs, which are held out to the side giving them (with their flattened, angular bodies) a crab-like appearance. Also, like crabs, these spiders move sideways and backwards more easily than forwards.

The spider family Aphantochilidae was incorporated into the Thomisidae in the late 1980s. Aphantochilus species mimic Cephalotes ants, on which they prey.

The spiders of Thomisidae are not known to be harmful to humans. Spiders of an unrelated genus, Sicarius, also resemble crabs (and are sometimes referred to as "crab spiders"). Sicarius spiders, close cousins to the recluse spiders, are highly venemous.

[edit] See also

[edit] References

  • Biolib family Thomisidae
  • Lise, A.A. (2005). Rejanellus, a new genus of Thomisidae (Araneae, Stephanopinae). Iheringia, Sér. Zool. 95(2):151-164. PDF

[edit] External links

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Arthropoda - Arachnida - Spider families (Araneae) Spider web