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This is an accepted version of this page This is the latest accepted revision, reviewed on 22 February 2025. Genus of red ants "Red ant" redirects here. For the species Pogonomyrmex barbatus, see Red harvester ant. For other uses, see Fire ant (disambiguation). Fire ant Temporal range: Early Oligocene–Recent Pre๊ ๊ O S D C P T J K Pg N Scientific classification Domain: Eukaryota Kingdom ...
Red imported fire ant workers range in size from small to medium, making them polymorphic. Workers measure between 2.4 and 6.0 mm (0.094 and 0.236 in). [43] The head measures 0.66 to 1.41 mm (0.026 to 0.056 in) and is 0.65 to 1.43 mm (0.026 to 0.056 in) wide.
The southern fire ant (Solenopsis xyloni), also known as the Californian fire ant or cotton ant, [1]: 89 is a stinging fire ant native to southern parts of the United States. [ 2 ] [ 3 ] [ 4 ] Its behaviour is similar to the red imported fire ant (S. invicta) , although its sting is less painful.
In the 1930s, colonies were accidentally introduced into the United States through the seaport of Mobile, Alabama.Despite earlier views that cargo ships from Brazil docking at Mobile unloaded goods infested with the ants, [1] recent DNA research confirmed that the likely source population for all invasive S. invicta in the United States occurred at or near Formosa, Argentina, and virtually ...
The nests are formed, some as craters or mounds, up to 2 feet wide and 12 inches tall with multiple entrance holes up to some 20 per nest. The number of mounds varies greatly, from 10 to 80 per acre in native habitats to up to 1000 or even 1500 mounds per acre in areas where they are introduced.
Santa Barbara County has spent a total of $15,000 eradicating local populations of red imported fire ants to prevent the invasive species from spreading.
Ant nests" are the physical spaces in which the ants live. These can be underground, in trees, under rocks, or even inside a single acorn. [6] The name "anthill" (or "ant hill") applies to aboveground nests where the workers pile sand or soil outside the entrance, forming a large mound. [10]
Most ant species will send individual scouts to find food sources and later recruit others from the colony to help; however, army ants dispatch a cooperative, leaderless group of foragers to detect and overwhelm the prey at once. [3] [5] Army ants do not have a permanent nest but instead form many bivouacs as they travel.