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Species Tibellus oblongus

running crab spider on Ceanothus - Tibellus oblongus Adult Male - Tibellus oblongus - male Dorsal view, male - Tibellus oblongus - male Wenatchee Tibellus - Tibellus oblongus Tibellus sp. - Tibellus oblongus - female Tibellus (crab spider) with rove beetle - Tibellus oblongus Tibellus oblongus spider - Tibellus oblongus
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Order Araneae (Spiders)
Infraorder Araneomorphae (True Spiders)
No Taxon (Entelegynae)
Family Philodromidae (Running Crab Spiders)
Genus Tibellus (Slender Crab Spiders)
Species oblongus (Tibellus oblongus)

According to Rod Crawford, this is the only species of Tibellus found in the western portion of Washington state. [See comment here.]