Mayriella abstinens

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Mayriella abstinens
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Crematogastrini
Genus: Mayriella
Species: M. abstinens
Binomial name
Mayriella abstinens
Forel, 1902

Mayriella abstinens casent0172349 profile 1.jpg

Mayriella abstinens casent0172349 dorsal 1.jpg

Specimen Label

Synonyms

Nests are found mainly in soil, either in the open or between rocks, and they have been found nesting within the mounds of Myrmecia auriventris, Myrmecia brevinoda and Myrmecia flavicoma and Pachycondyla (Bothroponera) mayri. They also nest arboreally under dead bark and in rotten wood on the ground. Workers forage on the ground (where they are often found in leaf litter samples) as well as arboreally.

Identification

This taxon can be separated from other Australian species of this genus by the presence of well developed sculpturing in the posterior section of the scrobe, the large, closely spaced pits on the mesosomal dorsum, and the parallel lateral surfaces of the postpetiole. It can be separated from the south-east Asian Mayriella transfuga by the less angular petiolar node and more heavily sculptured postpetiole. M. abstinens shows considerable variation in several morphological traits. The most obvious of these include the overall body color and the length of the propodeal spines. The body color varies from uniform light yellow to uniform dark brown, as well as bicolored dark yellow and dark brown. The propodeal spines vary in shape from short and triangular to elongate and thin. (Shattuck and Barnett 2007)

Identification Keys including this Taxon

Distribution

Distribution based on Regional Taxon Lists

Australasian Region: Australia (type locality), New Zealand.

Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Habitat

This species has been collected in habitats ranging from dry sclerophyll woodlands (less commonly) to rainforests (more commonly), and once in a garden.

Biology

Castes

Worker

Queen

Male

Nomenclature

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

  • abstinens. Mayriella abstinens Forel, 1902h: 452 (w.) AUSTRALIA. Imai, Crozier & Taylor, 1977: 349 (k.). Senior synonym of hackeri, venustula: Shattuck & Barnett, 2007: 441.
  • hackeri. Mayriella abstinens subsp. hackeri Wheeler, W.M. 1935e: 157, fig. 1 (w.q.) AUSTRALIA. Wheeler, G.C. & Wheeler, J. 1973a: 36 (l.). Raised to species: Taylor, 1991b: 602. Junior synonym of abstinens: Shattuck & Barnett, 2007: 441.
  • venustula. Mayriella abstinens subsp. venustula Wheeler, W.M. 1935e: 158 (w.) AUSTRALIA. Raised to species: Taylor, 1991b: 602. Junior synonym of abstinens: Shattuck & Barnett, 2007: 441.

Type Material

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.

Description

Worker

Shattuck and Barnett (2007) - Sculpturing in posterior section of antennal scrobe well developed and distinct; sculpturing on dorsal surface of mesosoma consisting of large, closely spaced pits (or rarely smaller and more widely spaced); propodeal spines varying from short and triangular to elongate and thin; dorsal surface of petiole in lateral profile uniformly convex, without distinct dorsal and posterior faces and forming an obtuse angle with the anterior face; in dorsal view, postpetiole with the anterior and posterior regions approximately the same width (the region connecting them either flat or weakly convex); postpetiole and gaster lacking erect hairs dorsally.

Measurements. Worker (n = 10): CI 0.89-0.97; HL 0.42-0.57; HTL 0.23-0.32; HW 0.39- 0.50; ML 0.42-0.57; PW 0.29-0.37; SI 0.58-0.73; SL 0.24-0.36.

References

  • Forel, A. 1902j. Fourmis nouvelles d'Australie. Rev. Suisse Zool. 10: 405-548 (page 452, worker described)
  • Imai, H. T.; Crozier, R. H.; Taylor, R. W. 1977. Karyotype evolution in Australian ants. Chromosoma (Berl.) 59: 341-393 (page 349, karyotype described)
  • 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. 1935e. The Australian ant genus Mayriella Forel. Psyche (Camb.) 42: 151-160 (page 151, (footnote) senior synonym of overbecki)