Crazy Ant Worker

Crazy Ant

The name comes for the worker’s habit of running haphazardly around a room or building in search of food. Found throughout the U.S. but cannot survive cold winter outdoors.

  • Common Name: Crazy Ant
  • Scentific Name: Paratrechina longicornis (Latreille)
  • Class/Order/Family: Insecta/Hymenoptera/Formicidea
  • Metamorphosis: Complete
  • Size


    Workers monomorphic, about 1/16-1/8" long.

  • Color


    Body dark brown to black with gray sheen/luster.

  • Biology


    The colonies tend to be small. Colonies are known to completely abandon one nesting site and move to another.

  • Habit


    Inside, ants usually nest underneath floors and in wall voids, especially near hot-water pipes and heaters.

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