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Ravine trapdoor spiders(Cyclocosmia truncata) are a species of Cyclocosmia with truncated opisthosomas that end in a heavily sclerotized round plate or disc similar to a manhole cover. This...

Only two of the over 400 species of spiders in Arkansas are venomous and considered dangerous to humans. The rest of Arkansas’s spiders benefit the state’s ecology. Learn which two to...

Some of the spiders in California are venomous, but by learning to identify some more common species, you can protect yourself against unintentionally disturbing one of them. The rest of the...

Among the many spiders in Colorado are a few dangerous ones, a few scary-looking ones, and many others that are a downright blessing to the ecology. This article will help you identify many of...

Running crab spiders, genus Philodromus occur in Europe, eastern Asia, North America, Central America, and South Africa. There are more than 250 described Philodromus species worldwide, at least...

Barn Funnel Weaver spiders (Tegenaria domestica) are a species that is widespread across the United States, from outbuildings and barns to crevices in door frames and cracks of rock faces. It can...