The Texas leafcutter ant (Atta texana) is a species of fungus-farming ant in the subfamily Myrmicinae. It is found in Texas, Louisiana, and north-eastern Mexico.[1] Other common names include town ant, parasol ant, fungus ant, cut ant, and night ant. It harvests leaves from over 200 plant species, and is considered a major pest of agricultural and ornamental plants,[2] as it can defoliate a citrus tree in less than 24 hours. Every colony has several queens and up to 2 million workers. Nests are built in well-drained, sandy or loamy soil, and may reach a depth of 6 m (20 ft), have 1000 entrance holes, and occupy 420 m2 (4,500 sq ft).[1]
| Texas leafcutter ant | |
|---|---|
 | |
| Harvesting from a catalpa tree | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Genus: | Atta |
| Species: | A. texana |
| Binomial name | |
| Atta texana Buckley, 1860 | |
Description
Workers measure 4 to 14 mm (0.16 to 0.55 in) in length, and are highly polymorphic. The back of the thorax has three pairs of spines. The ant has a narrow waist and is rusty brown in color.[1] It should also be mentioned: Its closely related cousin, Atta mexicana has colonies up to 8 Million, and the queen for A. mexicana is larger than the texana queen; however, it should also be mentioned that A. mexicana is only able to have a single queen, while A. texana may have multiple queens (Often 2). This makes the species polygyne and because of this trait, A. texana can form massive super colonies with upwards of 10,000,000 total ants in the colony.[3]Because of the massive super colonies that they can form, they have been known to cause issues in the local environment and have been a troubling pest for humans living nearby these super colonies.[4]
Behavior
The nuptial flights of A. texana synchronize in regions; the virgin queens and males fly at night.[5] Their foraging type is Mass Recruitment (MR).[6] The Mass Recruitment foraging type consists of many ants all going out into one big group and searching for food.[7]
References
- Evans, Arthur V (2007). "Ants, Bees, and Wasps: Order Hymenoptera". National Wildlife Federation Field Guide to Insects and Spiders & Related Species of North America. Sterling Publishing Co., Inc. p. 380. ISBN 978-1-4027-4153-1.
External links
- "Texas Leaf Cutting Ant". Insects in the City. 2019-03-21. Retrieved 2021-07-19.
- "Texas Leaf Cutting Ant, Atta texana". Urban and Structural Entomology Program at Texas A&M University. 2013-12-05. Retrieved 2022-01-19.
