Ants are the 3rd pest problem in the country. Ant control can be difficult, but there are some things you should know about how ants’ behavior can lead to big headaches for you and your home.

Brown House Ants : Facts, Identification & Control

Argentine Ant

Pheidole megacephala


Small, light brown to reddish brown to nearly black, dull ants. Often foraging in columns. Two worker sizes, although the major (larger, soldier worker) is rare. Majors may appear near baits. Major’s head is disproportionately larger than body. No workers intermediate in size will be found. Slow moving.



Living and dead insects. Collect honeydew from sap-sucking insects. Forage for sweets, fats, and proteins in homes.

Nesting Sites:

Nest in soil or under stones, logs, wood, or debris. P. megacephala foraging trails are sometimes soil-covered and resemble subterranean termite foraging tubes. Multiple queens. P. megacephala colonies can be spread out into megacolonies with multiple subnests. .

Mating Swarms:

June-July. P. megacephala reproduce by budding.

Pest Management:

Foragers both inside and outside. Piles of sand and other debris indoors. Outdoor colonies are difficult to control because of multiple nests, so restrict access to buildings.