Stereomyrmex

AntWiki - Where Ant Biologists Share Their Knowledge
Jump to: navigation, search
Stereomyrmex
Stereomyrmex horni
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Crematogastrini
Genus: Stereomyrmex
Emery, 1901
Type species
Stereomyrmex horni
Diversity
3 species
(Species Checklist)

Stereomyrmex horni casent0178593 profile 1.jpg

Stereomyrmex horni

Stereomyrmex horni casent0178593 dorsal 1.jpg

Specimen Label

Synonyms
Evolutionary Relationships

Rostromyrmex






Cardiocondyla



Ocymyrmex






Nesomyrmex



Xenomyrmex





Terataner




Atopomyrmex



Cataulacus










Carebara



Diplomorium






Melissotarsus



Rhopalomastix






Calyptomyrmex



Tetramorium





Cyphoidris



Dicroaspis










Aretidris



Vollenhovia





Dacetinops



Indomyrma








Crematogaster



Meranoplus






Lophomyrmex




Adlerzia



Recurvidris






Stereomyrmex




Trichomyrmex





Eutetramorium




Royidris




Malagidris



Vitsika








Huberia



Podomyrma





Liomyrmex



Metapone













Kartidris



Mayriella





Tetheamyrma




Dacatria



Proatta









Dilobocondyla



Secostruma






Acanthomyrmex



Myrmecina





Perissomyrmex



Pristomyrmex









some Lordomyrma



Propodilobus





Lasiomyrma




[some Lordomyrma




Ancyridris



some Lordomyrma









Paratopula




Poecilomyrma




Romblonella



Rotastruma








Gauromyrmex



Vombisidris





Temnothorax




Harpagoxenus



Formicoxenus



Leptothorax













Based on Ward et al. (2014) and Blaimer et al. (2018).

This small genus of 3 species is poorly known. Only Stereomyrmex anderseni, from Australia, has specimen data that provides any clues in regard to their biology. The holotype was collected in a pitfall trap in sclerophyll woodland on brown sand.

Identification

Taylor (1991) for the synonymized Willowsiella - Stereomyrmex and Romblonella share several features considered to indicate relationship between them. These include the general configuration of the mesosoma and nodes (despite the differences in the latter), and the fundamentally similar dental, fronto-clypeal, palpal and sting structures (the latter at least as visible without dissection). The two genera may be readily distinguished as follows:

Stereomyrmex - Antennae 11-jointed. Fronto-clypeal area strongly inflated. Antennal scrobes lacking. Petiole massively inflated (in S. dispar ), or somewhat scale-like and transverse (in S. anderseni). Postpetiole relatively small compared to petiole, transverse, and somewhat scale-like. Gaster emarginate at base, following the posterior outline of the postpetiole when viewed from above.

Romblonella - Antennae 12-jointed. Fronto-clypeal area unexceptionally inflated. Antenna scrobes strongly developed. Petiole somewhat globular but not unexceptionally inflated or transverse. Postpetiole of more normal proportions, subspherical, more-or-less as long as wide in dorsal view, at most only slightly smaller than petiole; usually larger. Gaster not basally emarginate.

Keys including this Genus

Distribution

World distribution based on political regions. View/Edit Data
Stereomyrmex 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

Stereomyrmex Species Richness.png

Biology

Castes

Morphology

Worker Morphology

 • Antennal segment count 11 • Antennal club 3 • Palp formula 5,3 • Total dental count 4-5 • Spur formula 0, 0 • Sting present

Male Morphology

 • Antennal segment count 11 • Antennal club 4-5

Nomenclature

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

  • STEREOMYRMEX [Myrmicinae: Formicoxenini]
    • Stereomyrmex Emery, 1901f: 115. Type-species: Stereomyrmex horni, by monotypy.
    • Stereomyrmex senior synonym of Willowsiella: Bolton, 2003: 252, 273.
  • WILLOWSIELLA [junior synonym of Stereomyrmex]
    • Willowsiella Wheeler, W.M. 1934a: 174. Type-species: Willowsiella dispar, by original designation.
    • Willowsiella junior synonym of Stereomyrmex: Bolton, 2003: 252, 273.
Emery 1901. Page 115
Emery 1901. Page 116

References

  • Ashmead, W. H. 1905c. A skeleton of a new arrangement of the families, subfamilies, tribes and genera of the ants, or the superfamily Formicoidea. Can. Entomol. 37: 381-384 (page 383, Stereomyrmex in Myrmicinae, Stenammini)
  • Bolton, B. 1994. Identification guide to the ant genera of the world. Cambridge, Mass.: Harvard University Press, 222 pp. (page 105, Stereomyrmex in Myrmicinae, Formicoxenini)
  • Bolton, B. 2003. Synopsis and Classification of Formicidae. Mem. Am. Entomol. Inst. 71: 370pp (page 252, 273, Stereomyrmex in Myrmicinae, Formicoxenini; Stereomyrmex senior synonym of Willowsiella)
  • Emery, C. 1901h. Ameisen gesammelt in Ceylon von Dr. W. Horn 1899. Dtsch. Entomol. Z. 1901: 113-122 (page 115, Stereomyrmex as genus)
  • Emery, C. 1914e. Intorno alla classificazione dei Myrmicinae. Rend. Sess. R. Accad. Sci. Ist. Bologna Cl. Sci. Fis. (n.s.) 18: 29-42 (page 40, Stereomyrmex in Myrmicinae, Stereomyrmecini)
  • Emery, C. 1922c. Hymenoptera. Fam. Formicidae. Subfam. Myrmicinae. [part]. Genera Insectorum 174B: 95-206 (page 119, Stereomyrmex in Myrmicinae, Stereomyrmecini)
  • Forel, A. 1917. Cadre synoptique actuel de la faune universelle des fourmis. Bull. Soc. Vaudoise Sci. Nat. 51: 229-253 (page 242, Stereomyrmex in Myrmicinae, Stereomyrmecini)
  • Taylor, R.W. 1991. Notes on the ant genera Romblonella and Willowsiella, with comments on their affinities, and the first description of Australian species. Psyche. 97:281-296. PDF
  • Wheeler, W. M. 1910b. Ants: their structure, development and behavior. New York: Columbia University Press, xxv + 663 pp. (page 139, Stereomyrmex in Myrmicinae, Myrmicini)
  • 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 661, Stereomyrmex in Myrmicinae, Stereomyrmecini)