Florida Carpenter Ants
Among the largest ants, from 1/5 to 1/2 inch long with a yellowish-red thorax and black abdomen. Normally nest in dead portions of standing trees, stumps, or logs, or burrow under fallen logs or stones; invade homes in search of food. Does not eat wood, but can hollow out wood in order to make its nest, depositing wood pieces nearby. It will feed on nearly anything people eat, particularly sweets and meats; also feed on other insects. Colonies can contain up to 3000 workers.
RED IMPORTED FIRE ANT
The imported fire ant is reddish-brown in color and worker sizes are from 1/8 to 1/4 inch in length. Colonies one year or older will likely contain in excess of 100 thousand workers. Strong, mature colonies may contain as many as 300 thousand workers.
Mound development and size is influenced by soil type and colony size. Generally, mounds are 12 inches or more in diameter and height. They also may extend 6' underground.
Fire Ants are one of the most aggressive ants that we have in the United States, workers can sting, commonly causing a white pustule to form.
Little Fire Ant
It is reddish to golden brown and 1/32 to 1/16 inch long. The workers are all one size. It nests in soil under logs and debris, but during the heavy rains it may move into trees or buildings. When worker sting it can be very painful.
Native Fire Ant
Color is reddish-brown to black and worker sizes are from 1/8 to 1/4 inch in length. It builds crater shaped mounds in sunny areas. Workers can sting which is painful, but the no white pustule forms.
Very small; light yellow to red, with black markings on the abdomen; about 1/16 inch long. Depends on artificial heating in the human dwellings to survive; infestations commonly occur in food service areas; will nest in any well-protected and hidden areas throughout a structure; can nest outdoors in lawns or gardens. Food of all types, but especially sweets; will also eat other insects. The most persistent and difficult of all household ants to control; very large colonies, with up to several million workers and thousands of queens.
The ghost ant is 1/32 inches long, it has a black head and thorax and a clear abdomen and legs. It normally nests outdoors and will forage indoors. This ant is most often seen in kitchens and bathrooms.
White Footed Ant
White footed ants are dark brown to brownish black and appear to be little black ants from a distance. They are about 1/8 inches in length. The average number of ants in a white-footed ant colony will range from 400,000 to well over 2 million. White footed ants are strongly attracted to sweets, although they will eat dead insects and have been observed attacking termites, worms and other small prey.