| Philodromidae | ||||||||||||
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Philodromus praelustris
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| Diversity | ||||||||||||
| 29 genera, 522 species | ||||||||||||
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Ebo |
Philodromidae is a family of spiders commonly known as philodromid crab spiders or running crab spiders. Arthropods are Animals belonging to the Phylum Arthropoda (from Greek ἄρθρον arthron, " Joint " Arachnids are a class ( Arachnida) of joint-legged Invertebrate Animals in the subphylum Chelicerata. Spiders are Predatory Invertebrate Animals that have two body segments, eight legs no chewing mouth parts and no wings The Thomisoidea are a Superfamily of araneomorph spiders They contain two families of eight-eyed spiders Philodromidae Tord Tamerlan Teodor Thorell ( May 3, 1830 - December 22, 1901) was a Swedish Arachnologist. This page lists all described species of the spider family Philodromidae as of May 18 2008 Philodromus is a genus of philodromid crab spiders Spiders in this genus are distinctively flattened In Biological classification, family ( Latin Spiders are Predatory Invertebrate Animals that have two body segments, eight legs no chewing mouth parts and no wings This family is superficially similar to the "true" crab spiders in the family Thomisidae. Crab spiders make up the Thomisidae family of the Araneae order
However, studies have shown that these families are not as closely related as previously thought. Unlike thomisids, philodromids tend to have few true setae (hairs or spines) on their bodies. They also lack the congruent eye tubercles of some thomisids. The second legs are usually the longer of the four pairs of walking legs and in the genus Ebo this is quite extreme, with the second pair of legs in some species twice as long as the first pair.
The most common genus is Philodromus which, like Ebo is widespread. A genus (plural genera from Γένος Latin genus "descent family type gender" is a low-level Taxonomic Other common genera include the elongate grass-dwelling Tibellus and the widespread Thanatus, which includes the widely distributed Holarctic house crab spider Thanatus vulgaris. This species commonly captures flies on and in buildings.
The family contains over 500 species in nearly 30 genera. Most are dull colored- brown, gray, yellowish or mottled, and seldom reach above 10 mm in body length. Most have a leaf-like cardiac mark on the anterior dorsal abdomen. None of the species build webs, but they do use silk for draglines and for egg sacs.
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The categorization into subfamilies follows Joel Hallan's Biology Catalog.
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Running crab spider. The Reverend Octavius Pickard-Cambridge FRS ( November 3, 1828 - March 9, 1917) was an English Clergyman and Zoologist Eugène Simon ( April 30, 1848 - November 17, 1924) was a French Arachnologist. Eugen von Keyserling ( 1833 - 1889) was a German Arachnologist. Embrik Strand (1876 Ål &ndash 1947 Riga) was an Arachnologist who classified many Insect and Spider species including the Philodromus is a genus of philodromid crab spiders Spiders in this genus are distinctively flattened Baron Charles Athanase Walckenaer (1771&ndash1852 was a French civil servant and scientist Carl Ludwig Koch ( September 21, 1778 - August 23, 1857) was a German Entomologist, specializing in Arachnology. Karakorum (Khalkha Mongolian Khara-khorin, Classical Mongolian Qara Qorum) was the capital of the Mongol Empire in the 13th century Incertae sedis ( Latin for "of uncertain placement" abbreviated "inc |