Common Types of Ants in the Southeastern U.S.

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closeup of carpenter ant walking across a leaf, when identifying the ant type

Ants are one of the most common household pests, but identifying the species matters because different ants can require different treatment methods. Homes and businesses across North Carolina, South Carolina, Georgia, and Florida may encounter several types of ants throughout the year.

Ant species can differ in size, color, nesting habits, behavior, and the areas where they are commonly found. Correct identification can help determine where the colony may be located and which ant control approach is most appropriate.

Below are some of the most common types of ants found throughout the Southeast and the characteristics that can help you identify them.

How to Identify Common Ant Species

Identifying the type of ant you’re dealing with is an important first step in choosing the right treatment approach. Ant species can differ in size, color, nesting habits, behavior, and the areas where they are commonly found.

Most ants share the same basic body structure, including a head, thorax, and abdomen, but those features alone usually aren’t enough for accurate identification.

Each species can also present different concerns. Odorous house ants may contaminate food, while carpenter ants can damage wood as they excavate galleries for nesting. Because ant species and activity vary across the Southeast, proper identification can help determine the most effective treatment plan.

Carpenter Ants

Macro shot of a large carpenter ant with a black head and dark reddish-brown body standing on a rough grey stone.

Carpenter ants are among the largest pest ants found in the Southeast, with workers commonly ranging from about ¼ to ½ inch long. Unlike termites, carpenter ants do not eat wood. Instead, they excavate it to create nesting galleries, which can contribute to damage over time.

Carpenter ants are often attracted to moist or damaged wood, although they may also excavate sound wood. Common nesting areas include wall voids, porches, doors, ceilings, and other wooden structures. Signs of an infestation may include sawdust-like debris called frass, rustling sounds inside walls, or large ants foraging indoors, especially at night.

Close-up of a dark, long-legged crazy ant carrying a small winged fly across a bright green leaf.

Tawny crazy ants are small, reddish-brown ants known for their rapid, erratic movements. They can form very large, interconnected colonies with multiple queens, allowing populations to spread quickly across yards and neighboring properties.

These ants typically nest outdoors in moist, protected areas beneath leaf litter, landscape debris, stones, potted plants, and similar locations. They may also invade structures and can infest electrical equipment, where heavy activity may contribute to equipment problems. Large infestations can be difficult to control and may require an integrated pest management approach.

Line of five dark brown odorous house ants walking together across a smooth white surface.

Odorous house ants are small, typically about ⅛ inch long, and range from dark brown to black. They get their name from the strong, rotten coconut-like odor they can release when crushed. While they do not cause structural damage, they can become a persistent nuisance indoors.

These ants are especially attracted to sweet foods and can quickly establish visible trails to food sources. Odorous house ants may form large colonies with multiple queens, which can make established infestations difficult to control. They may nest both indoors and outdoors, including in wall voids, beneath floors, around moisture sources, and in decaying wood.

Top-down view of a dark brown pavement ant with visible head grooves, isolated on a white background.

Pavement ants are small, typically about ⅛ inch long, and range from dark brown to black. They are primarily a nuisance pest and do not usually pose a health or structural threat, although they can contaminate food when they forage indoors.

Pavement ants often nest beneath sidewalks, driveways, patios, foundation slabs, and other cracks in pavement. Workers may enter homes in search of food and can form visible trails to sweets, grease, pet food, and other food sources.

Profile view of a red and black formica field ant isolated on a stark white background.

Field ants, also known as Formica ants, generally range from about 4 to 8 mm in size and may be red, brown, yellow, black, or a combination of colors. They typically nest outdoors in open soil, grassy areas, and around dead wood. Many field ants feed on honeydew produced by aphids and other insects and are less likely than common household ants to establish nests indoors.

Field ants do not sting, but they can bite when disturbed and may release formic acid that can cause irritation. If field ants are repeatedly entering your home or a large colony is creating problems around the property, professional identification can help locate the nest and determine the appropriate treatment.

Macro shot of a red imported fire ant standing on a light-colored, textured concrete or stone surface.

Several fire ant species are found across the Southeast, but the red imported fire ant is one of the most common and problematic. These reddish-brown ants vary in size and typically build mounds in sunny, disturbed areas such as lawns, parks, roadsides, and other open spaces.

When a colony is disturbed, fire ants can respond aggressively and deliver multiple painful stings. Their stings commonly cause burning, itching, swelling, and raised welts or pustules, while some people may experience serious allergic reactions. Active fire ant colonies around homes and frequently used outdoor areas should be addressed promptly.

Close-up of a dark brown Argentine ant crawling across a textured, light beige, sandy surface.

Argentine ants are small, light to dark brown ants found throughout much of the Southeast. They do not sting, but they can become a significant nuisance because they form large colonies and often invade homes in search of food and moisture.

These ants commonly nest in moist, protected areas outdoors but may move indoors and establish activity in wall voids, beneath floors, around ceilings, and near plumbing or other moisture sources. Argentine ant colonies can be difficult to control because they may contain multiple queens and spread across large areas.

Professional ant control can help identify nesting areas, reduce active colonies, and address the conditions contributing to recurring Argentine ant activity.

Several dark rover ants tending to large, round scale insects on a textured tree branch.

Rover ants are tiny, typically about 1/16 inch long, and range from dark brown to black. They usually nest outdoors in soil, mulch, landscaping, and other protected areas but may enter homes and buildings in search of food and moisture.

These ants are often found near water sources or areas with higher humidity. Signs of rover ant activity may include trails of very small ants along baseboards, windowsills, countertops, plumbing areas, or other indoor surfaces. While rover ants do not cause structural damage, established infestations can become a persistent nuisance.

Macro view of an acrobat ant with a reddish-brown head and a shiny black, heart-shaped abdomen resting on rough wood.

Acrobat ants get their name from their habit of raising their abdomen over their head when disturbed. They are small, typically about ⅛ inch long, and range in color from light brown to black. Acrobat ants often nest in moist or decaying wood, wall voids, and other protected areas.

These ants may expand existing cavities in damaged wood or insulation and can enter homes through small cracks and openings, especially around windows, doors, and utility lines. Signs of activity may include small amounts of debris near nesting areas and a noticeable odor when the ants are disturbed or crushed.

Detailed close-up of a light orange pyramid ant resting on a bright green leaf.

Pyramid ants are named for the pyramid-shaped structure on their thorax. They are small, typically about ⅛ inch long, and usually reddish-brown. While they are not typically harmful to people or structures, they can become a nuisance when they establish colonies around lawns, gardens, and outdoor living areas.

Pyramid ants usually nest in soil and may create small crater-like mounds in lawns or landscaped areas. Although they are primarily outdoor pests, they may occasionally enter homes in search of food.

Close-up of a shiny little black ant crawling on a vibrant, textured green leaf.

As their name suggests, little black ants are small (typically 1/16 inch long), and jet-black in color.  Little black ants are highly adaptable and can nest both indoors and outdoors. They are attracted to a wide variety of foods, including sweets, proteins, and greasy substances. 

Signs of an infestation include visible trails of tiny black ants, often leading to food sources in kitchens or pantries. While they don’t pose a significant threat to humans or property, they can be a persistent nuisance when they infest homes or outdoor areas.

Small, pale-orange pharaoh ant carrying a piece of white material across a textured light wood surface.

Pharaoh ants are extremely small, typically about 1/16 inch long, and range from light yellow to reddish-brown. They prefer warm, humid environments and often nest in hard-to-reach areas such as wall voids, behind baseboards, near plumbing, and around other moisture sources.

These ants can be a particular concern in hospitals, food-handling facilities, and other sensitive environments because they may contaminate food and surfaces as they forage. Pharaoh ants can also establish multiple interconnected colonies, making infestations difficult to control. Signs of activity may include trails of very small ants near food, moisture sources, or hidden nesting areas.

Close-up of a small yellowish-brown thief ant hanging from the edge of a green leaf.

Thief ants are extremely small, usually about 1/32 inch long, and range from pale yellow to light brown. They get their name from their habit of nesting near other ant colonies and stealing food and brood. While they do not typically damage structures, they can contaminate food when they forage indoors.

Because of their tiny size, thief ants can enter very small cracks, crevices, and food packaging. They may nest both indoors and outdoors, including in wall voids and other protected spaces. Thief ants are especially attracted to greasy and protein-rich foods, making kitchens and food-storage areas common places to find activity.

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How to Prevent Common Ant Problems

Preventing ants usually requires a combination of reducing attractants, sealing entry points, and addressing conditions that make your property appealing to them.

  • Seal cracks, gaps, and other potential entry points.
  • Clean up crumbs, spills, and food residue promptly.
  • Address leaks, standing water, and other moisture issues.
  • Store food and pet food in sealed containers.
  • Consider professional ant control when activity is recurring or difficult to manage.

Professional ant prevention can also help identify entry points, nesting areas, moisture problems, and other conditions contributing to activity. Addressing those conditions can help reduce current problems and lower the chance of recurring infestations.

When to Call a Professional for Ant Control

Ant problems can be difficult to control without knowing which species is involved. Store-bought products may reduce visible activity temporarily, but they do not always reach the colony or address the conditions contributing to the infestation.

Rocket Pest Control has been helping homeowners and businesses manage pest problems since 1958. Our technicians identify the ant species, evaluate activity around the property, and recommend targeted treatment based on the conditions present.

Get started with a free service quote. Give us a call or contact Rocket Pest Control online.

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