Definition: Peristediidae are a family of arachnids that consist primarily of small, segmented, and often venomous spiders. These spiders belong to the order Arachni (also known as Sphingidae) and are part of the class Araneae. Each member of this family is characterized by its distinctive characteristics, including the presence of a long, flexible body segment known as an "arachnid barb," which is used for trapping prey or to carry out sexual
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