Field Ant

 Identification and Control

Proper identification is an important first step in controlling ants.

Formica spp.

How to Identify an 

Field Ant

Field ants can be all black in color or reddish brown and black. They have one node (bump between middle and rear body sections). Field ants are often mistaken for carpenter ants, but are not as likely to forage indoors. They also have a depression in the their thorax which differentiates them from the carpenter ant. Field ants vary in size and are most commonly found in yards and gardens.

Where do they come from?

Field ants nest outdoors in loose soil. They may produce mounds (sometimes incorporating twigs, dried leaves and other plant materials) in exposed areas or nest under rocks, logs, etc. They do not frequently come indoors.

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What do they look like?

Field ant eating
Close up view of a field ant's head
Note the ocelli on the top of the head of the field ant
Dorsal view of a field ant
Head and mouth pieces of a field ant
Full view of a field ant

Where do they live?

Open fields, woodlands, decaying or soiled logs


Formica spp.


4-8 mm, can vary


Honeydew, sweets, and insects

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