Basiceros conjugans

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Basiceros conjugans
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Basiceros
Species: B. conjugans
Binomial name
Basiceros conjugans
Brown, 1974

Basiceros conjugans casent0280779 p 1 high.jpg

Basiceros conjugans casent0280779 d 1 high.jpg

Specimen Labels

Evolutionary Relationships

Basiceros sp.n.A

Basiceros convexiceps

Basiceros manni

Basiceros singularis

Basiceros scambognathus

Basiceros conjugans

Basiceros disciger

Basiceros militaris

Based on Probst, R.S., Wray, B.D., Moreau, M.S. and Brandão CRF. 2019. A Phylogenetic Analysis of the Dirt Ants, Basiceros (Formicidae: Myrmicinae): Inferring Life Histories Through Morphological Convergence. Insect Systematics and Diversity 3(4): 1–12.


Keys including this Species


Latitudinal Distribution Pattern

Latitudinal Range: -0.383333° to -13.14048°.

Tropical South

Distribution based on Regional Taxon Lists

Neotropical Region: Brazil, Colombia, Ecuador (type locality), Trinidad and Tobago.

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb

Countries Occupied

Number of countries occupied by this species based on AntWiki Regional Taxon Lists. In general, fewer countries occupied indicates a narrower range, while more countries indicates a more widespread species.


Estimated Abundance

Relative abundance based on number of AntMaps records per species (this species within the purple bar). Fewer records (to the left) indicates a less abundant/encountered species while more records (to the right) indicates more abundant/encountered species.





The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

  • conjugans. Basiceros conjugans Brown, 1974c: 134, figs. 1, 2 (w.q.m.) ECUADOR, COLOMBIA.
    • Type-material: holotype worker, 2+ paratype workers (number not stated, “a few other workers”), 8 paratype queens, 3 paratype males.
    • Type-locality: holotype Ecuador: Limoncocha, ix.-xi.1964 (H.R. Hermann); paratypes: unnumbered workers, 8 queens, 3 males with same data, 2 workers Colombia: 7 km. N Leticia, ii.1972, B-230 (S. & J. Peck).
    • Type-depository: not stated, presumably MCZC.
    • Status as species: Brandão, 1991: 330; Bolton, 1995b: 80; Feitosa, et al. 2007: 19 (in key); Bezděčková, et al. 2015: 115; Fernández & Serna, 2019: 844.
    • Distribution: Brazil, Colombia, Ecuador, Guyana, Peru, Trinidad.



References based on Global Ant Biodiversity Informatics

  • Alonso L., M. Kaspari, and A. Alonso. 2001. Assessment of the Ants of the Lower Urubamba Region, Peru. Pp 87-93. In: Alsonso A, Dallmeier F, Campbell P, editors. Urubamba: The biodiversity of a Peruvian rainforest. SI/MAB Biodiversity Program-Smithsonian Institution. 204 p.
  • Brandao, C.R.F. 1991. Adendos ao catalogo abreviado das formigas da regiao neotropical (Hymenoptera: Formicidae). Rev. Bras. Entomol. 35: 319-412.
  • Brown W. L. J. 1974. A supplement to the revision of the ant genus Basiceros (Hymenoptera: Formicidae). Journal of the New York Entomological Society. 82: 131-140.
  • Cover S. P., J. E. Tobin, and E. O. Wilson. 1990. The ant community of a tropical lowland rainforest site in Peruvian Amazonia. Pp. 699-700 in: Veeresh, G. K.; Mallik, B.; Viraktamath, C. A. (eds.) 1990. Social insects and the environment. Proceedings of the 11th International Congress of IUSSI, 1990. New Delhi: Oxford & IBH Publishing Co., xxxi + 765 pp.
  • Delabie J. H. C. 2000. First record of Basiceros conjugans (Hymenoptera: Formicidae: Basicerotini) in Brazil. Revista de Biologia Tropical 48: 272.
  • Fernández, F. and S. Sendoya. 2004. Lista de las hormigas neotropicales. Biota Colombiana Volume 5, Number 1.
  • Mertl A. L., J. F. A. Traniello, K. Ryder Wilkie, and R. Constantino. 2012. Associations of two ecologically significant social insect taxa in the litter of an amazonian rainforest: is there a relationship between ant and termite species richness? Psyche doi:10.1155/2012/312054
  • Probst R. S., B. D. Wray, C. S. Moreau, and C. R. F. Brandao. 2019. A phylogenetic analysis of the dirt ants, Basiceros (Formicidae: Myrmicinae): inferring life histories through morphological convergence. Insect Systematics and Diversity 3(4): 1–12.
  • Probst da Silva R. 2015. Revisao taxonomica e analise filogenetica de Basiceros Schulz, 1906 (Formicidae, Myrmicinae, Basicerotini). Master Thesis Museu de Zoologia da Universidade de Sao Paulo. 263 pages.