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Tetramorium caespitum casent0005827 profile 1.jpg
Tetramorium caespitum worker
Scientific classification e
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Crematogastrini
Genus: Tetramorium
Mayr, 1855
> 520 species

Apomyrmex Calilung, 2000
Atopula Emery, 1912
Decamorium Forel, 1913
Lobomyrmex Kratochvíl, 1941
Macromischoides Wheeler, 1920
Tetrogmus Roger, 1857
Triglyphothrix Forel, 1890
Xiphomyrmex Forel, 1887

Tetramorium is a genus of ants in the subfamily Myrmicinae that includes more than 520 species.[1][2]

Tetramorium was first described in the same publication as Monomorium.[3] These ants are also known as pavement ants.


Workers of most species have a ridged clypeus, an appendaged stinger, mandibles with 3 or 4 teeth, and antennae with 11 or 12 segments or with 3-segmented clubs on the tips.[2] The genus is divided into several species groups defined by various characters.[2]


Most species are distributed throughout the Afrotropical and Oriental regions. Ten species have been recorded from Japan. The pavement ant, T. caespitum, is native to Europe and was probably introduced to North America starting in the 18th century.[4]


Most known species nest in the soil, in decaying wood, or in leaf litter. Some live in trees or in termite nests.[2]




  1. ^ Bolton, B. (2014). "Tetramorium". AntCat. Retrieved 3 July 2014.
  2. ^ a b c d e Sharaf, Aldawood, Taylor (2012). "A New Ant Species of the Genus Tetramorium Mayr, 1855 (Hymenoptera: Formicidae) from Saudi Arabia, with a Revised Key to the Arabian Species". PLOS ONE. 7 (2): e30811. doi:10.1371/journal.pone.0030811.CS1 maint: Multiple names: authors list (link)
  3. ^ Mayr, G. (1855): Formicina austriaca. Beschreibung der bisher im österreichischen Kaiserstaate aufgefundenen Ameisen nebst Hinzufügung jener in Deutschland, in der Schweiz und in Italien vorkommenden Ameisen. Verhandlungen des Zoologisch-Botanischen Vereins in Wien 5: 273-478.
  4. ^ Jacobs, S. Pavement Ant. Penn State Extension. 2014.

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