Monomorium carinatum
Monomorium carinatum | |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Hymenoptera |
Family: | Formicidae |
Subfamily: | Myrmicinae |
Tribe: | Solenopsidini |
Genus: | Monomorium |
Species: | M. carinatum |
Binomial name | |
Monomorium carinatum Heterick, 2001 |
This species appears to be nocturnal: I have seen terrestrial foraging activity by workers near Newman, Western Australia Heterick (2001).
Identification
Heterick (2001) - A member of the monomorium group. Monomorium carinatum belongs to the Monomorium sydneyense complex, and closely resembles northern populations of that species. Some M. carinatum workers without strongly defined propodeal carinae may be confused with M. sydneyense, but can be distinguished by the laterally compressed propodeum, flattened trapezoidal promesonotum (viewed dorsally) and relatively larger eye.
Keys including this Species
Distribution
Latitudinal Distribution Pattern
Latitudinal Range: -16.3895° to -23.3392°.
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
Worker
Images from AntWeb
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Specimen code casent0902296. . |
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- carinatum. Monomorium carinatum Heterick, 2001: 397, figs. 35, 136, 143 (w.) AUSTRALIA (Northern Territory, Western Australia).
- Type-material: holotype worker, 22 paratype workers.
- Type-locality: holotype Australia: Northern Territory, 5 km. NE Barrow Creek, 21°29’S, 133°55’E, 10.x.1981, 126a (D. Davidson & S. Morton); paratypes: 5 workers with same data, 3 workers with same data but 126b, 5 workers with same data but 126c, 3 workers Northern Territory, 11 km. N Tennants Creek, 19°32’S, 134°13’E, 11.x.1981, 141a (D. Davidson & S. Morton), 5 workers with same data but 141b, 6 workers with same data but 141c.
- Type-depositories: ANIC (holotype); ANIC, BMNH, MCZC (paratypes).
- 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. HML 1.47; HL 0.53; HW 0.43; Cel 80; SL 0.38; SI 89; PW 0.30. Others. HML 1.25-1.56; HL 0.48-0.55; HW 0.36-0.46; Cel 76-86; SL 0.34-0.40; SI 84-94; PW 0.24-0.32 (26 measured).
As for the worker of M. sydneyense, but with the following apomorphies.
Head. Frons of head capsule smooth and shining with evenly spaced, appressed setulae, or longitudinally striate with well-spaced, appressed setulae. (Viewed laterally) compound eyes set at midline of head capsule; eye large, eye width greater than 1.5x greatest width of antennal scape. Anteromedial clypeal margin straight or slightly emarginate, median clypeal carinae not produced as teeth or denticles. Maximum number of mandibular teeth and denticles: three; mandibles (viewed from front) strap-like with inner and outer edges subparallel, striate, with piliferous punctures.
Alitrunk. Promesonotal sculpture present in form of uniform microreticulation with few mesopleural striolae; dorsal promesonotal face convex anteriad, otherwise flattened; erect and suberect promesonotal setae absent. Propodeal sculpture present as uniform microreticulation, with few or no striae or costulae; propodeal processes absent (propodeum smoothly rounded in profile or with slight hump at propodeal angle); lobes present as blunt flanges. Declivitous face of propodeum longitudinally concave between its lateral margins. Erect and suberect propodeal setae absent or very sparse; propodeal setulae absent. Propodeal spiracle lateral and about midway between metanotal groove and declivitous face of propodeum.
Petiole and postpetiole. Petiolar spiracle lateral and slightly anteriad of petiolar node. Petiolar node cuneate, dorsally rounded to cuneate, sharply tapered; sculpture present in form of microreticulation. Ratio of greatest node breadth (viewed from front) to greatest node width (viewed in profile) near 4:3. Anteroventral process always present as pronounced spur. Height ratio of petiole to postpetiole near 4:3. Sculpture present in form of microreticulation.
General characters. Colour either russet or brown with posterior promesonotum, propodeum, anterior sector of petiole, and apex of gaster more darkly infuscated, legs amber or uniformly fulvous. Worker caste monomorphic.
Type Material
- Holotype, worker, 5km NE Barrow Creek, Northern Territory, Australia, Davidson,D. & Morton,S.R., ANIC32-015724, Australian National Insect Collection.
- Paratype, 5 workers, 5km NE Barrow Creek, Northern Territory, Australia, Australian National Insect Collection.
- Paratype, 8 workers (some damaged), 5km NE Barrow Creek, Northern Territory, Australia, The Natural History Museum.
- Paratype, 14 workers, 11km N Tennant Creek, Northern Territory, Australia, Museum of Comparative Zoology.
Etymology
Latin: “keeled”.
References
- Heterick, B. E. 2001. Revision of the Australian ants of the genus Monomorium (Hymenoptera: Formicidae). Invertebrate Taxonomy. 15:353-459. (page 397, figs. 35, 136, 143 worker described)
- 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).
- Sparks, K. 2015. Australian Monomorium: Systematics and species delimitation with a focus of the M. rothsteini complex. Ph.D. thesis, University of Adelaide.
References based on Global Ant Biodiversity Informatics
- Fisher J., L. Beames, B. J. Rangers, N. N. Rangers, J. Majer, and B. Heterick. 2014. Using ants to monitor changes within and surrounding the endangered Monsoon Vine Thickets of the tropical Dampier Peninsula, north Western Australia. Forest Ecology and Management 318: 7890.