Female winter ant with a male nearby

''Prenolepis imparis'', commonly known as the winter ant, false honey ant, or false honeypot ant, is a species of ant in the genus ''Prenolepis''. The species is found in North America, from Canada to Mexico, nesting deep within the ground. Unusual among ants, ''Prenolepis imparis'' prefers lower temperatures, including near freezing, and is only active outside the nest during winter and early spring. ''Prenolepis imparis'' enters a hibernation-like state called aestivation during the summer.
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