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Aphileta misera is a species of dwarf spider in the family Linyphiidae. It is found in North America, Europe, and Russia.

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Araneus cavaticus, commonly known as the barn spider, is a common orb-weaver spider native to North America. They are around three-quarters of an inch (20 mm) in length and are usually yellow and brown in color. They often construct their webs in wooden human structures, hence their common name. The species is notable for being the basis for the character Charlotte in the book Charlotte's Web by American writer E. B. White.

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Canalidion is a monotypic genus of tangle-web spiders containing the single species, Canalidion montanum. The species was first described by James Emerton in 1882 under the name Theridion montanum. J. Wunderlich moved it to its own genus in 2018, because it had more teeth on the anterior margin of the cheliceral furrow, a basal depression of the cymbium, and an embolus positioned dorsally. It has a holarctic distribution.

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Cosmophasis bitaeniata is a species of jumping spider found in Indonesia, Papua New Guinea, Australia, Micronesia, and Fiji. The common name is green ant hunter as it preys on the larvae of green tree ants.

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Cryptachaea rupicola is a species of cobweb spider in the family Theridiidae. It is found in the United States and Canada.

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Dipoena nigra is a species of cobweb spider in the family Theridiidae. It is found in the USA, Canada, and Mexico.

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Euryopis argentea is a species of cobweb spider in the family Theridiidae. It is found in the United States, Canada, and Russia.

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Mecicobothrium thorelli is a spider in the family Mecicobothriidae, native to Argentina and Uruguay. It was first described in 1882 by Holmberg. The specific name thorelli honours Tamerlan Thorell.

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Mimetus epeiroides is a species of pirate spider in the family Mimetidae. It is found in the United States.

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Prostheclina pallida is a species of spider in the family Salticidae, native to Eastern Australia. It was described by Keyserling in 1882, and remained the only species in the genus until 2007, when six more species were described.

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Rugathodes sexpunctatus is a minute species of spider in the family Theridiidae, the cobweb or tangle-web spiders. This family includes the medically important genus Latrodectus—the widow spiders. The species in the genus Rugathodes are too small to be dangerous to humans. Very little is known about most species in this genus.

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Telema tenella is a species of spider in the family Telemidae. The species is endemic to the eastern Pyrénées between Spain and France.

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Theridion differens is a species of cobweb spider in the family Theridiidae. It is found in the United States and Canada.

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Theridion murarium is a species of cobweb spider in the family Theridiidae. It is found in North America.

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Thymoites unimaculatus is a species of cobweb spider in the family Theridiidae. It is found in the United States and Canada.