Camponotus morosus

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Camponotus morosus
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Camponotini
Genus: Camponotus
Species: C. morosus
Binomial name
Camponotus morosus
(Smith, F., 1858)

Camponotus morosus casent0249339 p 1 high.jpg

Camponotus morosus casent0249339 d 1 high.jpg

Specimen Labels

Camponotus morosus can be found living in mixed nests with the ant Solenopsis gayi. 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)



Distribution based on Regional Taxon Lists

Neotropical Region: Argentina, Chile (type locality).

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb


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



The diet was studied by Grez et al. in 1986, in a sclerophyllous scrub environment through the interception of forage workers. It was determined that 40.91% of the items taken to the nest correspond to insects (of these 90.8 dead and 9.2 live insects) behaving mainly as a scavenger. The second item in importance corresponds to bird and reptile feces (35.71%), followed by items of plant origin (22.8%). Adult ants only require sugars for their general metabolism, not their larvae and queen, which are in active growth and reproduction, respectively. In this way, the large number of insects and faeces can be explained, which are very rich in nitrogen, a constituent and essential element for proteins. Additionally, C. morosus has been observed foraging on carcasses of cow (Bos taurus), transporting in this case remains of cadaveric insect pupae, and pieces of skin and hair, also attending to aphids (Aphididae), mealybugs (Pseudococcidae) and scale insects ( Coccidae) (Cerpa 2017 Pers. Obs.).




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

  • morosus. Formica morosa Smith, F. 1858b: 50 (w.) CHILE. Mayr, 1865: 32 (s.). Combination in Camponotus: Mayr, 1862: 665; in C. (Tanaemyrmex): Emery, 1925b: 78. Subspecies of rubripes: Forel, 1886f: 144. Junior synonym of distinguendus: Dalla Torre, 1893: 228. Revived from synonymy as subspecies of distinguendus: Emery, 1895i: 18; Emery, 1906c: 191; Santschi, 1916e: 396. Revived status as species: Menozzi, 1935c: 329; Kempf, 1972a: 69; Snelling & Hunt, 1976: 120.



  • Dalla Torre, K. W. von. 1893. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus. Vol. 7. Formicidae (Heterogyna). Leipzig: W. Engelmann, 289 pp. (page 228, Junior synonym of distinguendus)
  • Emery, C. 1895k. Deuxième note sur les fourmis du Chili. Actes Soc. Sci. Chili 5: 10-18 (page 18, Revived from synonymy as variety/subspecies of distinguendus)
  • Emery, C. 1906c [1905]. Studi sulle formiche della fauna neotropica. XXVI. Bull. Soc. Entomol. Ital. 37: 107-194 (page 191, Revived from synonymy as variety/subspecies of distinguendus)
  • Emery, C. 1925d. Hymenoptera. Fam. Formicidae. Subfam. Formicinae. Genera Insectorum 183: 1-302 (page 78, Combination in C. (Tanaemyrmex))
  • Errard, C., J. Ipinza Regla, and A. Hefetz. 2003. Interspecific recognition in Chilean parabiotic ant species. Insectes Sociaux. 50:268-273.
  • Forel, A. 1886h. Études myrmécologiques en 1886. Ann. Soc. Entomol. Belg. 30: 131-215 (page 144, Race of rubripes)
  • Grez, A. A., Simonetti, J. A., & Ipinza-Regla, J. (1986). Hábitos alimenticios de Camponotus morosus (Smith, 1858)(Hymenoptera: formicidae) en chile central. Revista Chilena de Entomología, 13, 51-54.
  • Ipinza Regla, J., Galano, A., & Morales, M. A. (1993). Ambito de hogar de Camponotus morosus Smith, 1858 (Hymenoptera, Formicidae). Sociedad Chilena de Entomologia (Chile)..
  • Ipinza-Regla, J., A. M. Fernandez, M. A. Morales, and J. E. Araya. 2017. Hermetism between Camponotus morosus Smith and Linepithema humile Mayr (Hymenoptera: Formicidae). Gayana. 81:22-27. doi:10.4067/S0717-65382017000100022
  • Kempf, W. W. 1972b. Catálogo abreviado das formigas da regia~o Neotropical. Stud. Entomol. 15: 3-344 (page 69, Revived status as species)
  • Mayr, G. 1862. Myrmecologische Studien. Verh. K-K. Zool.-Bot. Ges. Wien 12: 649-776 (page 665, Combination in Camponotus)
  • Mayr, G. 1865. Formicidae. In: Reise der Österreichischen Fregatte "Novara" um die Erde in den Jahren 1857, 1858, 1859. Zoologischer Theil. Bd. II. Abt. 1. Wien: K. Gerold's Sohn, 119 pp. (page 32, soldier described)
  • Menozzi, C. 1935c. Fauna Chilensis. II. (Nach Sammlungen von W. Goetsch). Le formiche del Cile. Zool. Jahrb. Abt. Syst. Ökol. Geogr. Tiere 67: 319-336 (page 329, Revived status as species)
  • Santschi, F. 1916e. Formicides sudaméricains nouveaux ou peu connus. Physis (B. Aires) 2: 365-399 (page 396, Revived from synonymy as variety/subspecies of distinguendus)
  • Segura, B., & Brown, B. V. (2014). Inter-colony aggression of Camponotus morosus attractive to phorid flies. Journal of the Kansas Entomological Society, 87(1), 84-88.
  • Smith, F. 1858a. Catalogue of hymenopterous insects in the collection of the British Museum. Part VI. Formicidae. London: British Museum, 216 pp. (page 50, worker described)
  • Snelling, R. R.; Hunt, J. H. 1975. The ants of Chile (Hymenoptera: Formicidae). Rev. Chil. Entomol. 9: 63-129 (page 120, Revived status as species)