These ants are 3/8 to ½ inch long, and may be black or black and red. The
antennae are long and elbowed. Worker ants may be seen indoors
throughout the year, the large, winged queens appear in the spring.
(Camponotus spp.) Nests are usually located in moisture-damaged wood, but they can infest sound wood. The workers forage for food indoors in early spring, then move outside to feed on insects. Colonies located indoors usually become active in February and March.
Locating the nest is the first step to control. Inspect for water leaks and moisture damaged wood, then remove the wood and repair the leak. Baits may be effective, but spraying may not be.