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Species: Tetramorium simillimum   (Smith, 1851) 

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See Also:

Tetramorium simillimum_cf

Taxonomic History (provided by Barry Bolton, 2020)

Myrmica simillima Smith, 1851 PDF: 118 (w.) GREAT BRITAIN. Palearctic. AntCat AntWiki HOL

Taxonomic history

Meinert, 1861: 331 (gynandromorph); André, 1883a: 289 (q.m.); Imai et al., 1984 PDF: 8 (k.).
Combination in Tetramorium: Mayr, 1861 PDF: 61.
Senior synonym of Tetramorium pygmaeum: Forel, 1916 PDF: 421.
Senior synonym of Tetramorium parallela: Bolton, 1977 PDF: 131.
Senior synonym of Tetramorium pusillum bantouana, Tetramorium pusillum exoleta and material of the unavailable name Tetramorium breve referred here: Bolton, 1980 PDF: 320.
See also: Emery, 1909f PDF: 696.

Taxon Page Images:

photo © Philip Herbst; T simillimum, showing workers and multiple queens. Majik Forest, Cape Town

// Distribution


  Geographic regions (According to curated Geolocale/Taxon lists):
    Africa: Cameroon, Comoros, Congo, Democratic Republic of Congo, Eritrea, Ethiopia, Europa Island, Ghana, Kenya, Madagascar, Mauritius, Mayotte, Mozambique, Nigeria, Reunion, Senegal, Seychelles, South Africa, Tanzania, Uganda, Zambia, Zimbabwe
    Americas: Bahamas, Brazil, Costa Rica, Ecuador, Galapagos Islands, Guadeloupe, Guyana, Haiti, Mexico, United States
    Asia: India, Indonesia, Japan, Philippines, Sri Lanka, Thailand, Yemen
    Europe: United Kingdom
    Oceania: Australia, Fiji, French Polynesia, Hawaii, Micronesia, New Caledonia, Palau, Samoa, Solomon Islands, Tonga
  Biogeographic regions (According to curated Bioregion/Taxon lists):
    Afrotropical, Australasia, Indomalaya, Malagasy, Nearctic, Neotropical, Oceania, Palearctic
  Native to (according to species list records):
    Afrotropical bioregion

Distribution Notes:

Reference for Kenya if not type: Santschi 1914b


Natural History:

Tetramorium simillimum is an uncommon tramp species in Costa Rica. I have only collected it once in Costa Rica, on a picnic table at the headquarters of Santa Rosa National Park.


Introduced species. CA record: Bolton (1979: 171).


Caste of types: (w)

Taxonomic Treatment (provided by Plazi)

Scientific Name Status Publication Pages ModsID GoogleMaps
Tetramorium simillimum   Wild, A. L., 2007, A catalogue of the ants of Paraguay (Hymenoptera: Formicidae)., Zootaxa 1622, pp. 1-55: 38, (download) 38 21367
Tetramorium simillimum   Collingwood, C. A., 1979, The Formicidae (Hymenoptera) of Fennoscandia and Denmark., Fauna Entomologica Scandinavica 8, pp. 1-174: 85, (download) 85 6175
Tetramorium simillimum   Wheeler, W. M., 1922, The ants collected by the American Museum Congo Expedition., Bulletin of the American Museum of Natural History 45, pp. 39-269: 193, (download) 193 20597
Tetramorium simillimum   Bolton, B., 1979, The ant tribe Tetramoriini (Hymenoptera: Formicidae). The genus Tetramorium Mayr in the Malagasy region and in the New World., Bulletin of the British Museum (Natural History) Entomology 38, pp. 129-181: 170-171, (download) 170-171 6435
Tetramorium simillimum   Forel, A., 1893, Formicides de l'Antille St. Vincent. Récoltées par Mons. H. H. Smith., Transactions of the Entomological Society of London 1893, pp. 333-418: 382-383, (download) 382-383 3948
Tetramorium simillimum   Ward, P. S., 2005, A synoptic review of the ants of California (Hymenoptera: Formicidae)., Zootaxa 936, pp. 1-68: -1, (download) -1 21008
Tetramorium simillimum   Forel, A., 1907, The Percy Sladen Trust Expedition to the Indian Ocean in 1905, under the leadership of Mr. J. Stanley Gardiner. No. VI. - Fourmis des Seychelles, Amirantes, Farquhar et Chagos., Transactions of the Linnean Society of London 12, pp. 91-94: -1, (download) -1 4010
Tetramorium (Tetrogmus) simillimum   Santschi, F., 1914, Formicidae., Voyage de Ch. Alluaud et R. Jeannel en Afrique Orientale (1911 - 1912). Résultats scientifiques. Hyménoptères 2, pp. 41-148: 106, (download) 106 8111

Specimen Habitat Summary

Found most commonly in these habitats: 47 times found in tropical dry forest, 37 times found in urban/garden, 23 times found in coastal scrub, 17 times found in rainforest, 6 times found in port of entry/city, 24 times found in forest, 18 times found in mixed forest, 16 times found in urban garden, 7 times found in tropical dry forest on Tsingy, 10 times found in spiny forest/thicket, ...

Found most commonly in these microhabitats: 60 times sifted litter (leaf mold, rotten wood), 52 times ground forager(s), 44 times ex rotten log, 23 times under stone, 16 times on low vegetation, 13 times under rootmat, litter on rock, 11 times ex soil, 9 times sifted litter, 11 times under tree bark, live tree, 10 times leaf litter, 2 times foraging on ground, ...

Collected most commonly using these methods: 96 times Pitfall trap, 31 times MW 50 sample transect, 5m, 9 times H, 16 times hand collected|aspirator>bait trap|peanut butter, 16 times Hand collected, 11 times MW 25 sample transect, 5m, 7 times 9 MaxiWinks, mixed samples, 11 times Winkler, 5 times hand collected|aspirator, 7 times L, 2 times 2 Maxi Winks, ...

Elevations: collected from 1 - 1690 meters, 242 meters average

Collect Date Range: collected between 1870-12-31 and 2045-06-25

Type specimens: Holotype: casent0249091, casent0249092, casent0249093; not part of type series: casent0915079; syntype of Tetramorium pusillum bantouana: casent0915080, casent0917835; syntype of Tetramorium pusillum bantuala breve: casent0915081; syntype of Tetramorium pygmaeum: casent0904832; syntype of Tetramorium simillimum denticulatum: casent0909115; syntype of Wasmannia auropunctata brevispinosa: casent0915082; type of Tetramorium simillimum var. opacior: focol2100

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