5/8"

Usually red, black or a combination

Excavate (do not eat) wood and form smooth tunnels inside of the wood. Leave piles of fine sawdust.

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1/8-3/8” (3-9mm)

Pale yellowish to reddish brown to black or combination

Prefer to nest outdoors. Arrange soil into a mound as they remove it from the ground when creating their nesting areas​

1/16” (1.5 – 2.0 mm)

Pale, varying from yellowish to reddish with abdomen often black

Make large colonies 

Spread disease, and are a major nuisance in hospitals​​

1.5 mm - 2.2 mm long – one of the smallest household ant species

Pale yellow to light or dark brown

Nest very close to, or even sometimes within, other ants’ nests, which they then rob

1/8"

Dark Brown to Black

Get their name due to ability to make nests in or under cracks in pavement.

Can also infest structures.

1/16" - 1/8"

 Uniform in color from brown to black

Gets its name from the strong, rotten coconut-like smell it gives off when crushed