Diacamma australe

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Diacamma australe
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Ponerinae
Tribe: Ponerini
Genus: Diacamma
Species: D. australe
Binomial name
Diacamma australe
(Fabricius, 1775)

Diacamma australe casent0172071 profile 1.jpg

Diacamma australe casent0172071 dorsal 1.jpg

Specimen labels

Diacamma australe is found along the northern Queensland coast and is sympatric with Diacamma schoedli in the northern part of its range.

At a Glance • Gamergate  
 

Identification

Dorsal surfaces of pronotum and head with distinct rugae. Petiolar spines relatively widely spaced, anterior face of node shorter than dorsal face and separated from it by a distinct angle.

This species can be separated from Diacamma colosseense and Diacamma schoedli by the presence of a block-like petiolar node and distinct sculpturing on the first gastral tergite. Note that this tergite is sculptured in all of these species. However, in this species the sculpturing is stronger and covers the posterior two-thirds of the segment, while in the others the sculpturing is weaker and limited to the anterior half.

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Australasian Region: Australia (type locality).

Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Nomenclature

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

  • australe. Formica australis Fabricius, 1775: 393 (w.) AUSTRALIA. Forel, 1915b: 26 (m.); Wheeler, G.C. & Wheeler, J. 1952c: 609 (l.). Combination in Diacamma: Mayr, 1862: 718. See also: Shattuck & Barnett, 2006: 14.

Type Material

Description

Measurements (n = 12): HL 2.55 - 2.88 mm, HW 2.06 - 2.35 mm, CI 77 - 84, SL 2.87 - 3.27 mm, SI 133 - 148, ML 3.67 - 4.12 mm, MTL 2.34 - 2.65 mm, PH 1.26 - 1.59 mm, PL 0.95 - 1.14 mm, PI 66 - 79.

References

  • Fabricius, J. C. 1775. Systema entomologiae, sistens insectorum classes, ordines, genera, species adiectis synonymis, locis, descriptionibus, observationibus. Flensburgi et Lipsiae [= Flensburg and Leipzig]: Korte, 832 pp. (page 393, worker described)
  • Forel, A. 1915b. Results of Dr. E. Mjöbergs Swedish Scientific Expeditions to Australia 1910-13. 2. Ameisen. Ark. Zool. 9(1 16: 1-119 (page 26, male described)
  • Mayr, G. 1862. Myrmecologische Studien. Verh. K-K. Zool.-Bot. Ges. Wien 12: 649-776 (page 718, Combination in Diacamma)
  • Shattuck, S.O. & Barnett, N.J. 2006. Australian species of the ant genus Diacamma. Myrmecologische Nachrichten 8: 13-19. PDF
  • Taylor, R. W.; Brown, D. R. 1985. Formicoidea. Zool. Cat. Aust. 2:1- 149: 1-149, 30 (page 29, Senior synonym of colossensis and levis)
  • Wheeler, G. C.; Wheeler, J. 1952c. The ant larvae of the subfamily Ponerinae - Part II. Am. Midl. Nat. 48: 604-672 (page 609, larva described)