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Adlerzia froggatti
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Crematogastrini
Genus: Adlerzia
Forel, 1902
Type species
Monomorium (Adlerzia) froggatti, now Adlerzia froggatti
1 species
(Species Checklist)

Adlerzia froggatti casent0010805 profile 1.jpg

Adlerzia froggatti

Adlerzia froggatti casent0010805 dorsal 1.jpg

Specimen Label


Adlerzia contains a single species and is limited to Australia. Specimens are infrequently encountered. They nest under stones as well as in the soil without coverings. Little is known about their biology.


The antennae are 11 segmented (including the scape). The upper surface of the head is smooth or uniformly sculptured and without grooves for the reception of the antennae when at rest (antennal scrobes are absent). The front margin of the clypeus just above the mandibles has pairs of elongate hairs or setae which straddle the mid-line of the head and lacks a single central hair or seta. The clypeus has a pair of longitudinal ridges or sharp angles immediately below the antennal sockets which separate the central region from the lateral regions (clypeus longitudinally bicarinate). The petiole has a distinct, rounded node. There are major and minor workers but no intermediates (dimorphic).

These ants are most likely to be confused with species Pheidole because of the generally similar body size and shape and the presence of major workers. They can be separated by their 11 segmented antennae and bicarinate clypeus.

Keys including this Genus


World distribution based on political regions. View/Edit Data
Adlerzia Distribution.png Worlddistribution legend.jpg

Species richness

Species richness by country based on regional taxon lists (countries with darker colours are more species-rich). View Data

Adlerzia Species Richness.png


See Adlerzia froggatti


The single species of this genus is polymorphic.

Head of worker Side of worker Top of worker

Minor worker of A. froggatti from New South Wales.

Head of worker Side of worker Top of worker

Medium worker of A. froggatti from New South Wales.

Head of worker Side of worker Top of worker

Major worker of A. froggatti from New South Wales.


Worker Morphology

 • Antennal segment count 11 • Antennal club 3 • Palp formula 4,3 • Total dental count 4-5 • Spur formula ? • Eyes present • Scrobes absent • Sting present (from literature)


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

  • ADLERZIA [Myrmicinae: Solenopsidini]
    • Adlerzia Forel, 1902h: 445 [as subgenus of Monomorium]. Type-species: Monomorium (Adlerzia) froggatti, by monotypy.
    • Adlerzia raised to genus: Brown, 1952j: 176.
    • Adlerzia senior synonym of Stenothorax: Brown, 1952a: 110.
  • STENOTHORAX [junior synonym of Adlerzia]
    • Stenothorax McAreavey, 1949: 3. Type-species: Stenothorax katerinae (junior synonym of Monomorium (Adlerzia) froggatti, by original designation.
    • Stenothorax junior synonym of Adlerzia: Brown, 1952a: 110.
Emery 1922 174B:182. Adlerzia
Emery 1921 174A:76-77. Machomyrma


  • Bolton, B. 1994. Identification guide to the ant genera of the world. Cambridge, Mass.: Harvard University Press, 222 pp. (page 106, Adlerzia in Myrmicinae, Pheidologetini [Pheidologentonini])
  • Bolton, B. 1995a. A taxonomic and zoogeographical census of the extant ant taxa (Hymenoptera: Formicidae). J. Nat. Hist. 2 29: 1037-1056 (page 1047, Adlerzia as genus)
  • Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp. (page 58, Adlerzia as genus)
  • Bolton, B. 2003. Synopsis and Classification of Formicidae. Mem. Am. Entomol. Inst. 71: 370pp (page 9, 208, Adllerzia transferred to tribe Solenopsidini)
  • Brown, W. L., Jr. 1952a [1951]. Adlerzia froggatti Forel and some new synonymy (Hymenoptera: Formicidae). Psyche (Camb.) 58: 110 (page 110, Adlerzia senior synonym of Stenothorax)
  • Brown, W. L., Jr. 1952m. On the identity of Adlerzia Forel (Hymenoptera: Formicidae). Pan-Pac. Entomol. 28: 173-177 (page 176, Adlerzia raised to genus; Adlerzia in Myrmicinae, Pheidolini)
  • Dlussky, G. M.; Fedoseeva, E. B. 1988. Origin and early stages of evolution in ants. Pp. 70-144 in: Ponomarenko, A. G. (ed.) Cretaceous biocenotic crisis and insect evolution. Moskva: Nauka, 232 pp. (page 80, Adlerzia incertae sedis in Myrmicinae)
  • Donisthorpe, H. 1943g. A list of the type-species of the genera and subgenera of the Formicidae. [part]. Ann. Mag. Nat. Hist. 11(10): 617-688 (page 620, Adlerzia as subgenus of Monomorium)
  • Emery, C. (1914). Formiche d'Australia e di Samoa raccolte dal Prof. Silvestri nel 1913. Bollettino del Laboratorio di Zoologia Generale e Agraria della Reale Scoula Superiore d'Agricoltura. Portici, 8: 179–186.
  • Emery, C. 1915g. Noms de sous-genres et de genres proposés pour la sous-famille des Myrmicinae. Modifications à la classification de ce groupe (Hymenoptera Formicidae). Bull. Soc. Entomol. Fr. 1915: 189-192 (page 190, Adlerzia as subgenus of Monomorium)
  • Emery, C. 1922c. Hymenoptera. Fam. Formicidae. Subfam. Myrmicinae. [part]. Genera Insectorum 174B: 95-206 (page 182, Adlerzia in Myrmicinae, Solenopsidini; Adlerzia as subgenus of Monomorium )
  • Forel, A. 1902j. Fourmis nouvelles d'Australie. Rev. Suisse Zool. 10: 405-548 (page 445, Adlerzia as subgenus of Monomorium)
  • Forel, A. 1917. Cadre synoptique actuel de la faune universelle des fourmis. Bull. Soc. Vaudoise Sci. Nat. 51: 229-253 (page 242, Adlerzia in Myrmicinae, Solenopsidini [subtribe Monomoriini]; Adlerzia as subgenus of Monomorium)
  • Hölldobler, B.; Wilson, E. O. 1990. The ants. Cambridge, Mass.: Harvard University Press, xii + 732 pp. (page 16, Adlerzia in Myrmicinae, Pheidolini)
  • McAreavey, J. (1949). Australian Formicidae. New genera and species. Proceedings of the Linnean Society of New South Wales, 74: 1-25.
  • Taylor, R. W. 1987a. A checklist of the ants of Australia, New Caledonia and New Zealand (Hymenoptera: Formicidae). CSIRO Div. Entomol. Rep. 41: 1-92 (page 5, Adlerzia as genus)
  • Taylor, R. W.; Brown, D. R. 1985. Formicoidea. Zool. Cat. Aust. 2:1- 149: 1-149, 30 (page 53, Adlerzia as genus)
  • Wheeler, G. C.; Wheeler, J. 1985b. A simplified conspectus of the Formicidae. Trans. Am. Entomol. Soc. 111: 255-264 (page 257, Adlerzia in Myrmicinae, Pheidolini)
  • Wheeler, W. M. 1910b. Ants: their structure, development and behavior. New York: Columbia University Press, xxv + 663 pp. (page 139, Adlerzia as subgenus of Monomorium)
  • Wheeler, W. M. 1922i. Ants of the American Museum Congo expedition. A contribution to the myrmecology of Africa. VII. Keys to the genera and subgenera of ants. Bull. Am. Mus. Nat. Hist. 45: 631-710 (page 676, Adlerzia as subgenus of Monomorium)