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Odorous House Ant

Ants
Odorouse House Ant Worker

Odorous House Ant – Tapinoma sessile (Say).  Workers are about one-eighth inch long and are all the same size in the colony.  Black, with a single node which is hidden by the front of the abdomen.  May have many queens in the colony which makes them difficult to control.  They may enter homes when colonies become very large, natural food or water sources become scarce or when climate conditions are extreme (drought or flood).  Sweet foods are preferred, but they will eat protein foods such as meats and cheeses.  Outdoors they feed mainly on honeydew that is produced by insects such as aphids and mealybugs.  Elimination of food, water and nesting sites is critical for long term control.