ants

Larger yellow ant up to 1/4-inch long and a yellow-brownish color. It's called the citronella ant because it has a citrus odor when crushed. They do not feed on human foods. They are usually noticed when colonies move indoors in winter, and in spring when the winged reproductive are produced and often mistaken for termite swarmers. 
Small honey ant â€‹up to 1/8-inch and dark brown. Honey ants nest in voids under concrete slabs, flooring, and walls. Small honey ants prefer lower temperatures than other ants. Honey ants may be the first and the last ants seen each year, disappearing during the heat of summer. 

Pharaoh ant : 1/12 -inch and yellow to reddish-brown. Pharaoh ants nest in voids in floors, walls, and ceilings. They often infest large buildings. They can pose health risks in hospitals because they carry infectious bacteria from the warm, moist areas they inhabit, to intravenous fluids, blood, and wounds. The colonies of this ant do not spread by swarming, but instead by "budding," breaking apart and establishing sub-colonies in new locations

The first line of defense in any pest management program is, exclusion. This involves taking steps to prevent pests from entering the structure. Most often, ants are nesting outside a structure and make periodic "raids" indoors to search for food. Occasionally, they enter the structure and establish nests inside. Another weapon in pest management is sanitation. Making food unavailable to ants not only discourages them from establishing trails, but makes them more likely to accept baits. Conventional treatments such as liquids, dusts, and granules can be part of an ant management plan. Ant management often requires the use of more than one method of control. 

Odorous house ant : 1/8-inch long, brownish-black ant that can be confused with the pavement ant. When the ant is crushed, it releases an odor smelling like rotton coconut. Nests are found under rocks, boards, and in floor/ wall voids. ​

ant removal ~ ant management

Pavement ants dark brown-black and about 1/6-inch long. The most common ant in structures, the pavement ant, is so named because it excavates an underground nest. They are often seen indoors after heavy  rain drenches their underground territories. ​

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Carpenter ant â€‹ various sizes up to 3/4-inch long and dull black. Other species are black or dark-reddish-brown. Nests consist of numerous tunnels chewed in logs, stumps, tree trunks, firewood, decks, porches, window and door frames, wall voids, and foam insulation. Indoor nests are usually "satellite" nests connected to the colony's main nest outdoors. They do not eat wood but forage for human foods.