The Ant-Mimicking Sac Spider belongs to the Castianeira genus within the Corinnidae family. These spiders are notable for their incredible ability to mimic ants in both appearance and behavior. This mimicry helps them evade predators and can even allow them to infiltrate ant colonies to steal their young. Fast runners by nature, these spiders are often found on the ground, among leaf litter, or under rocks, similar to the habitats of ants. They thrive in various environments, including prairies, forests, and shrubby areas, here is one in Tehatta, West Bengal, India, on 03/08/2025.
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