Ever walked into your kitchen and been greeted by a line of tiny, dark invaders? You're likely dealing with odorous house ants, one of the most common household pests in North America. These ants aren't just a nuisance; they can contaminate food and, in large numbers, become a real problem. Understanding what they are, how to identify them, and how they differ from other ants, like carpenter ants, is crucial for effective pest management.
Odorous house ants, scientifically known as Tapinoma sessile, are small ants that thrive in various environments, particularly urban areas. These tiny creatures, measuring just 1/16 to 1/8 inch long, have dark brown or black bodies and an unevenly shaped thorax. They are often found in kitchens or areas where food is stored, relentlessly searching for sweet foods or moisture. Their adaptability and quick spread make them a common concern for homeowners. A key identifying feature of these ants is their behavior; they're quick, typically travel in a line, and are often driven indoors after heavy rain, attempting to escape flooding of their nest.
| Common Name | Odorous House Ant |
|---|---|
| Scientific Name | Tapinoma sessile |
| Size | 1/16 to 1/8 inch long |
| Color | Dark brown or black |
| Habitat | Inside buildings, walls, beneath floors, kitchens, areas with food storage, urban environments |
| Diet | Sweet foods, moisture |
| Distinguishing Feature | Smell of rotten coconut when crushed |
| Behavior | Quick, travels in lines, seeks shelter indoors after heavy rain |
| Impact | Nuisance, contaminates food |
| Reference | EPA - Controlling Ants in Schools and Childcare Facilities |
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