Solenopsis gayi

Every Ant Tells a Story - And Scientists Explain Their Stories Here
Jump to navigation Jump to search
Solenopsis gayi
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Solenopsidini
Genus: Solenopsis
Species group: geminata
Species: S. gayi
Binomial name
Solenopsis gayi
(Spinola, 1851)

Solenopsis gayi casent0913892 p 1 high.jpg

Solenopsis gayi casent0913892 d 1 high.jpg

Specimen Labels


In Chile Solenopsis gayi can be found living in mixed nests with the ant Camponotus morosus. Believed to be a parabiotic association, the relationship between these two ants was studied and it was found S. gayi workers were tolerant of all C. morosus workers. C. morosus workers were aggressive to most other ants except their own nestmates and the S. gayi workers they lived with. (Errard et al. 2003)


A member of the Solenopsis geminata species-group.


Distribution based on Regional Taxon Lists

Neotropical Region: Chile (type locality), Colombia, Peru.

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb


This species is polygynous (Errard et al. 2003).



The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • gayi. Myrmica gayi Spinola, 1851a: 242 (w.) CHILE. Combination in Solenopsis: Mayr, 1886c: 365. Junior synonym of geminata: Mayr, 1886d: 460; Dalla Torre, 1893: 76. Revived from synonymy as subspecies of geminata: Emery, 1895i: 11; Emery, 1906c: 121. Revived status as species: Forel, 1909a: 269; Santschi, 1923c: 261; Creighton, 1930b: 48. Senior synonym of fazi: Brown, 1950e: 248. See also: Trager, 1991: 170.
  • fazi. Solenopsis gayi var. fazi Santschi, 1923c: 261 (w.) CHILE. Creighton, 1930b: 51 (q.). Junior synonym of gayi: Brown, 1950e: 248.



  • Brown, W. L., Jr. 1950g. Morphological, taxonomic, and other notes on ants. Wasmann J. Biol. 8: 241-250 (page 248, Senior synonym of fazi)
  • Creighton, W. S. 1930b. The New World species of the genus Solenopsis (Hymenop. Formicidae). Proc. Am. Acad. Arts Sci. 66: 39-151 (page 48, Revived status as species)
  • Dalla Torre, K. W. von. 1893. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus. Vol. 7. Formicidae (Heterogyna). Leipzig: W. Engelmann, 289 pp. (page 76, Junior synonym of geminata)
  • Emery, C. 1895k. Deuxième note sur les fourmis du Chili. Actes Soc. Sci. Chili 5: 10-18 (page 11, Revived from synonymy as subspecies of geminata)
  • Emery, C. 1906c [1905]. Studi sulle formiche della fauna neotropica. XXVI. Bull. Soc. Entomol. Ital. 37: 107-194 (page 121, Revived from synonymy as subspecies of geminata)
  • Errard, C., J. Ipinza Regla, and A. Hefetz. 2003. Interspecific recognition in Chilean parabiotic ant species. Insectes Sociaux. 50:268-273.
  • Forel, A. 1909a. Ameisen aus Guatemala usw., Paraguay und Argentinien (Hym.). Dtsch. Entomol. Z. 1909: 239-269 (page 269, Revived status as species)
  • Mayr, G. 1886c. Notizen über die Formiciden-Sammlung des British Museum in London. Verh. K-K. Zool.-Bot. Ges. Wien 36: 353-368 (page 365, Combination in Solenopsis)
  • Pitts, J.P., Camacho, G.P., Gotzek, D., McHugh, J.V., Ross, K.G. 2018. Revision of the fire ants of the Solenopisis saevissima species group (Hymenoptera: Formicidae). Proceedings of the Entomological Society of Washington, 120: 308–411.
  • Santschi, F. 1923c. Solenopsis et autres fourmis néotropicales. Rev. Suisse Zool. 30: 245-273 (page 261, Revived status as species)
  • Spinola, M. 1851a. Insectos. Orden 7. Himenopteros. Pp. 153-569 in: Gay, C. Historia fisica y politica de Chile. Zoologia. Tomo 6. Paris: Maulde & Renon, 572 pp. (page 242, worker described)
  • Trager, J. C. 1991. A revision of the fire ants, Solenopsis geminata group (Hymenoptera: Formicidae: Myrmicinae). J. N. Y. Entomol. Soc. 99: 141-198 (page 170, see also)