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)

Identification

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

Distribution based on Regional Taxon Lists

Neotropical Region: Costa Rica (type locality).

Check distribution from AntMaps.

Distribution based on specimens

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The above specimen data are provided by AntWeb. Please see Adelomyrmex minimus for further details

Biology

Castes

Known only from the worker caste.

Nomenclature

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

  • minimus. Adelomyrmex minimus Fernández, in Fernández & Mackay, 2003: 602 (w.) COSTA RICA. See also: Fernández, 2003b: 24.

Description

Worker

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.

References

  • 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.