Genus
Castianeira (Ant-mimic sac spiders)
Castianeira thalia. Photo: (c) K Schneider, some rights reserved (CC BY-NC)
Castianeira is a genus of ant-like corinnid sac spiders first described by Eugen von Keyserling in 1879. They are found in Eurasia, Africa, and the Americas, but are absent from Australia. Twenty-six species are native to North America, and at least twice as many are native to Mexico and Central America.
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