Appearance: Black or black/rusty red, 1/4 to 1/2″ in length for workers (most commonly seen) and 3/4″ for queens. Only reproductive’s (kings and queens) are-winged and shed them before choosing a nesting-site.
Evidence of: Sawdust piles (often containing pieces of the ants), crunching/crackling sounds, clean galleries in wood members and the ants themselves (commonly seen in kitchens and bathrooms).
Control method: Treatment of exterior-foundation and other access points/nesting sites, a combination of interior bait-placements and crack and crevice treatments where the ants have been seen foraging and spot/void-treatments of the nest(s) if locatable. After initial-treatment an annual exterior perimeter foundation treatment is recommended.