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Mayriella occidua
| Mayriella occidua | |
|---|---|
| |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Crematogastrini |
| Genus: | Mayriella |
| Species: | M. occidua |
| Binomial name | |
| Mayriella occidua Shattuck, 2007
| |
This is the only species of Mayriella known from Western Australia, and extends the range of this genus in Australia westward by nearly 2,000km. Morphologically this species is most similar to Mayriella abstinens, a species found along the Queensland and New South Wales coasts (Shattuck and Barnett, 2007) and not Mayriella ebbei, the species which occurs in the Adelaide region and is geographically closest to M. occidua. The only known specimen of this species was collected during a survey in an area with pines.
Identification
Mayriella occidua can be separated from other Australian species of Mayriella by the presence of a cylindrical or slightly barrel-shaped postpetiole which lacks lateral expansions when viewed dorsally, the well developed and distinct sculpturing in the posterior sections of the antennal scrobes and in having the dorsum of the petiole with distinct dorsal and posterior faces which are separated by an obtuse angle. It is most similar to Mayriella abstinens but can be separated from it by the shape of the petiolar node (the node lacks distinct dorsal and posterior faces in M. abstinens).
Identification Keys including this Taxon
Distribution
Latitudinal Distribution Pattern
Latitudinal Range: -34.98332977° to -35.06666667°.
| North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: AntMaps
Distribution based on Regional Taxon Lists
Australasian Region: Australia (type locality).
Distribution based on AntMaps
Distribution based on AntWeb specimens
Check data from AntWeb
Countries Occupied
| Number of countries occupied by this species based on AntWiki Regional Taxon Lists. In general, fewer countries occupied indicates a narrower range, while more countries indicates a more widespread species. |
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Estimated Abundance
| Relative abundance based on number of AntMaps records per species (this species within the purple bar). Fewer records (to the left) indicates a less abundant/encountered species while more records (to the right) indicates more abundant/encountered species. |
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Biology
Castes
Known only from the worker caste.
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- occidua. Mayriella occidua Shattuck, 2007: 50, figs. 5-8 (w.) AUSTRALIA (Western Australia).
- Type-material: holotype worker.
- Type-locality: Australia: Western Australia, Nuyts Wilderness, Walpole, xii.2003 (P.F. Van Heurck).
- Type-depository: ANIC.
- Status as species: Heterick, 2009: 151.
- Distribution: Australia.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Description
Worker
Holotype worker. CI 88; HL 0.50; HTL 0.27; HW 0.44; ML 0.50; PW 0.32; SI 61; SL 0.27. Sculpturing in posterior section of antennal scrobe well developed and distinct. Sculpturing on dorsal surface of mesosoma consisting of large, closely spaced pits. Propodeal spines short, triangular. Dorsal surface of petiole in lateral profile with distinct dorsal and posterior faces which are separated by an obtuse angle, dorsal face much longer than posterior face. Lateral margins of postpetiole in dorsal view essentially parallel. Dorsum of postpetiole and gaster lacking erect hairs (excluding row along posterior margin of gastral tergite).
Type Material
Holotype worker from Western Australia, Nuyts Wilderness (approx. 35°04'S 116°38'E), Walpole, December 2003 (P. F. Van Heurck) (Australian National Insect Collection, No. 32-009464).
- Holotype, worker, Nuyts Wilderness, Walpole, Western Australia, Australia, Van Heurck,P.F., ANIC32-009464, Australian National Insect Collection.
References
- Heterick, B. E. 2009. A guide to the ants of South-western Australia. Records of the Western Australian Museum, Supplement 76:1-206.
- Heterick, B.E. 2021. A guide to the ants of Western Australia. Part I: Systematics. Records of the Western Australian Museum, Supplement 86, 1-245 (doi:10.18195/issn.0313-122x.86.2021.001-245).
- Heterick, B.E. 2022. A guide to the ants of Western Australia. Part II: Distribution and biology. Records of the Western Australian Museum, supplement 86: 247-510 (doi:10.18195/issn.0313-122x.86.2022.247-510).
- Shattuck, S.O. 2007. New species of myrmicine ants from Western Australia. Zootaxa 1661: 47-53.
References based on Global Ant Biodiversity Informatics
- Heterick B. E. 2009. A guide to the ants of south-western Australia. Records of the Western Australian Museum Supplement 76: 1-206.