|Alliance:||Mayriella genus group|
(Species Checklist, Species by Country)
|Based on Ward et al. (2014) and Blaimer et al. (2018).|
Mayriella is an Indo-Australian ant genus. There are presently nine described species. Workers are small and, for those for which nests have been found, form colonies of 50 - 100 individuals.
Workers of Mayriella may be separated from other members of the Myrmicinae by the presence of a 10-segmented antenna with a 2-segmented club; well developed antennal scrobes; the clypeus with the mediolateral regions concave and the anterior margin with a bidentate process (these structures combining to form an extension of the scrobes which receive the terminal segments of the antennae when the antennae are retracted); and elongate compound eyes which are narrowed anteroventrally. These characters, especially the shape of the eyes and the configuration of the clypeus, are distinctive within the subfamily and it is unlikely these ants will be confused with close relatives. (Shattuck and Barnett 2007)
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Keys including this Genus
Keys to Species in this Genus
Distribution and Richness based on AntMaps
Number of species within biogeographic regions, along with the total number of species for each region.
|Afrotropical Region||Australasian Region||Indo-Australian Region||Malagasy Region||Nearctic Region||Neotropical Region||Oriental Region||Palaearctic Region|
Species of Mayriella show strong preference for moist, forested areas. Most specimens have been collected from rainforest or wet sclerophyll woodlands with relatively few collections from dry sclerophyll or scrub habitats (and these are restricted to Australia). Nests are normally found in soil under stones or with a small mound of loose dirt at the entrance. They have also been found nesting in rotten logs and occasionally arboreally. The number of workers in nests averages between 50 and 100 and about one-half of the nest series containing queens contain more than one, suggesting that species are polygynous. Foraging workers are most commonly collected from litter samples. Nests appear to be locally abundant although patchily distributed on a larger scale. For example, in the Brindabella Ranges near Canberra, ACT, Mayriella ebbei is infrequently encountered and is known from only a few localities. However, near Baroomba Rocks (located on the eastern slope of the Brindabella Ranges) M. ebbei occurs commonly under rocks in an area covering several hundred square meters. This population appears limited to this small area as nests could not be found in areas with similar geography and vegetation located several kilometers away. However, observations are limited and additional data will be required to determine if these habits are widespread and/or occur in other species. Additionally, while Taylor (1961) made similar observations for Mayriella abstinens, these were based on the introduced population found in New Zealand and should be confirmed for naturally occurring populations of the genus. (Shattuck and Barnett 2007)
Life History Traits
- Mean colony size: 50-100 (Greer et al., 2021)
- Compound colony type: not parasitic (Greer et al., 2021)
- Nest site: hypogaeic (Greer et al., 2021)
- Diet class: ? (Greer et al., 2021)
- Foraging stratum: subterranean/leaf litter (Greer et al., 2021)
- Foraging behaviour: cooperative (Greer et al., 2021)
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• Eyes: 11-100 ommatidia • Pronotal Spines: absent • Mesonotal Spines: absent • Propodeal Spines: dentiform; present • Petiolar Spines: absent • Caste: none or weak • Sting: present • Metaplural Gland: present • Cocoon: absent
All Karyotype Records for Genus
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|Mayriella abstinens||18||Australia||Imai et al., 1977|
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- MAYRIELLA [Myrmicinae: Solenopsidini]
- Mayriella Forel, 1902h: 452. Type-species: Mayriella abstinens, by monotypy.
- Blaimer, B.B., Ward, P.S., Schultz, T.R., Fisher, B.L., Brady, S.G. 2018. Paleotropical diversification dominates the evolution of the hyperdiverse ant tribe Crematogastrini (Hymenoptera: Formicidae). Insect Systematics and Diversity 2(5): 3; 1-14 (doi:10.1093/isd/ixy013).
- Bolton, B. 1994. Identification guide to the ant genera of the world. Cambridge, Mass.: Harvard University Press, 222 pp. (page 106, Mayriella in Myrmicinae, Stenammini?)
- Bolton, B. 2003. Synopsis and Classification of Formicidae. Mem. Am. Entomol. Inst. 71: 370pp (page 210, Mayriella in Myrmicinae, Solenopsidini)
- Cantone S. 2018. Winged Ants, The queen. Dichotomous key to genera of winged female ants in the World. The Wings of Ants: morphological and systematic relationships (self-published).
- 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, Mayriella in Myrmicinae, Calyptomyrmecini)
- Emery, C. 1914e. Intorno alla classificazione dei Myrmicinae. Rend. Sess. R. Accad. Sci. Ist. Bologna Cl. Sci. Fis. (n.s.) 18: 29-42 (page 41, Mayriella in Myrmicinae, Meranoplini)
- Emery, C. 1924f . Hymenoptera. Fam. Formicidae. Subfam. Myrmicinae. [concl.]. Genera Insectorum 174C: 207-397 (page 223, Mayriella in Myrmicinae, Meranoplini)
- Forel, A. 1902j. Fourmis nouvelles d'Australie. Rev. Suisse Zool. 10: 405-548 (page 452, Mayriella as genus)
- Forel, A. 1917. Cadre synoptique actuel de la faune universelle des fourmis. Bull. Soc. Vaudoise Sci. Nat. 51: 229-253 (page 244, Mayriella in Myrmicinae, Meranoplini)
- Jansen, G., Savolainen, R. 2010. Molecular phylogeny of the ant tribe Myrmicini (Hymenoptera: Formicidae). Zoological Journal of the Linnean Society 160(3), 482–495 (doi:10.1111/j.1096-3642.2009.00604.x).
- Shattuck, S.O. & Barnett, N.J. 2007. Revision of the ant genus Mayriella (pp. 437-458). In Snelling, R.R., Fisher, B.L. & Ward, P.S. (eds). Advances in ant systematics: homage to E.O. Wilson – 50 years of contributions. Memoirs of the American Entomological Institute 80:690 pp.
- Wheeler, W. M. 1910b. Ants: their structure, development and behavior. New York: Columbia University Press, xxv + 663 pp. (page 141, Mayriella in Myrmicinae, Tetramoriini)
- 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 663, Mayriella in Myrmicinae, Meranoplini)
- Wheeler, W. M. 1934a. Formicidae of the Templeton Crocker Expedition, 1933. Proc. Calif. Acad. Sci. (4) 21: 173-181 (page 176, Mayriella in Myrmicinae, Meranoplini)
- Wheeler, W. M. 1935a. Two new genera of myrmicine ants from Papua and the Philippines. Proc. N. Engl. Zool. Club 15: 1-9 (page 6, Mayriella in Myrmicinae, Meranoplini)
- Wheeler, W. M. 1935e. The Australian ant genus Mayriella Forel. Psyche (Camb.) 42: 151-160 (page 151, Mayriella in Myrmicinae, Meranoplini)