Adelomyrmex minimus

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Adelomyrmex minimus
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Solenopsidini
Genus: Adelomyrmex
Species: A. minimus
Binomial name
Adelomyrmex minimus
Fernández, 2003

This species is still known only from the holotype. It is apparently a Pacific slope version of the Atlantic slope Adelomyrmex foveolatus, differing only in the smaller eyes and perhaps smaller size. But these are both traits that vary, and sample sizes are insufficient to assess morphological distinctness. (Longino 2012)


Very similar to Adelomyrmex foveolatus, but distinguished by: smaller size, eyes reduced to one ommatidium; foveae more dense, hypostomal teeth larger, mesosomal sides with some rugulae and color lighter.

Keys including this Species


Distribution based on Regional Taxon Lists

Neotropical Region: Costa Rica (type locality).

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.



Known only from the worker caste.


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

  • minimus. Adelomyrmex minimus Fernández, in Fernández & Mackay, 2003: 602 (w.) COSTA RICA.
    • Type-material: holotype worker.
    • Type-locality: Costa Rica: Puntarenas, Rincón, in stomach of Dendrobates granuliferus (no collector’s name).
    • Type-depository: LACM
    • Status as species: Fernández, 2003b: 24 (redescription); Longino, 2012: 24.
    • Distribution: Costa Rica.



Mandibles with 5 teeth, decreasing in size from the apical. The angle between basal tooth of masticatory border and tooth of basal border well developed. Anterior margin of clypeal plate slightly concave. Eyes with 1 ommatidium. Hypostomal tooth medium sized, stout. Mesosoma evenly convex, interrupted only by the deep metanotal groove. Propodeal spines about as long as wide. Petiole rounded above. Postpetiole with median carinae on posterior side. Head smooth and shining with dense and large foveae in posterior part, sides rugo-foveolated, medial area with about 7 longitudinal rugulae. Promesonotum smooth and shining. Sides of mesosoma smooth and shining with some irregular striae. Posterior face of propodeum with several transverse carinae. Most of petiole and postpetiole smooth and shining. Dorsal pilosity moderately long, dense. Body light brown.

Type Material

Fernández (2003b) - holotype worker (Puntarenas, Costa Rica) from the stomach of Dendrobates granuliferus frog.


  • Fernández, F. 2003b. Revision of the myrmicine ants of the Adelomyrmex genus-group (Hymenoptera: Formicidae). Zootaxa 361: 1-52 (page 24, see also)
  • Fernández, F.; Mackay, W. P. 2003. Myrmicine ants of the Adelomyrmex laevigatus species complex (Hymenoptera: Formicidae). Sociobiology 41: 593-604 (page 602, Map 4 worker described)
  • Longino, J.T. 2012. A review of the ant genus Adelomyrmex Emery 1897 (Hymenoptera, Formicidae) in Central America. Zootaxa 3456, 1–35.

References based on Global Ant Biodiversity Informatics

  • Fernández, F. and S. Sendoya. 2004. Lista de las hormigas neotropicales. Biota Colombiana Volume 5, Number 1.