Anonychomyrma longiceps

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Anonychomyrma longiceps
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Dolichoderinae
Tribe: Leptomyrmecini
Genus: Anonychomyrma
Species: A. longiceps
Binomial name
Anonychomyrma longiceps
(Forel, 1907)

Anonychomyrma longiceps casent0922447 p 1 high.jpg

Anonychomyrma longiceps casent0922447 d 1 high.jpg

Specimen Labels



Distribution based on Regional Taxon Lists

Australasian Region: Australia (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.


Anonychomyrma species are common in moist to semi-arid forested areas (and are less common in rain forests). They nest either in soil with or without coverings, or arboreally in living or dead wood. Workers forage in conspicuous trails on the ground and on tree trunks. Although not studied in detail, they seem to be general predators and also collect plant juices. Some species are associated with the caterpillars of selected butterflies. Nest sizes are moderate to large, ranging from 500 to tens of thousands of workers. When disturbed, most species elevate their gasters and release strong, acrid smelling chemicals as a defensive measure. While similar to Iridomyrmex in general habitat preferences and ecology, most Anonychomyrma prefer moister sites and are predominately arboreal. Iridomyrmex species occur in drier sites and are predominantly terrestrial.



Images from AntWeb

Anonychomyrma longiceps casent0922447 p 2 high.jpg
Syntype of Iridomyrmex longicepsQueen (alate/dealate). Specimen code casent0922447. Photographer Michele Esposito, uploaded by California Academy of Sciences. Owned by HNHM, Budapest, Hungary.


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

  • longiceps. Iridomyrmex longiceps Forel, 1907a: 27 (q.) AUSTRALIA (New South Wales).
    • Combination in Anonychomyrma: Shattuck, 1992a: 13.
    • Status as species: Emery, 1913a: 25; Taylor & Brown, 1985: 100; Taylor, 1987a: 32; Shattuck, 1994: 6; Bolton, 1995b: 66.

Type Material

  • Iridomyrmex longiceps Forel, 1907: Syntype, Mt. Victoria, Blue Mountains, New South Wales, Australia, museum unknown (prob. MHNG (Geneva) or HNHM (Budapest)).



References based on Global Ant Biodiversity Informatics

  • Shattuck S. O. 1994. Taxonomic catalog of the ant subfamilies Aneuretinae and Dolichoderinae (Hymenoptera: Formicidae). University of California Publications in Entomology 112: i-xix, 1-241.