Tetramorium striolatum

Tetramorium striolatum
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Family:	Formicidae
Subfamily:	Myrmicinae
Tribe:	Crematogastrini
Genus:	Tetramorium
Species:	T. striolatum
Binomial name
	Tetramorium striolatum; Viehmeyer, 1914 Specimen Labels

Known from a variety of habitats, from collection records this appears to be a ground nesting species that does well in dryer open areas.

Identification

Bolton (1977) - This species is closely related to Tetramorium impressum but is separated by its longer and more strongly developed frontal carinae and by the shape of the petiole node in profile.

Heterick (2009) - Tetramorium striolatum includes reddish specimens with a finely striolate basal sector of the first gastral tergite, and relatively massive petiolar nodes. Some doubt is here expressed that these are conspecific with other specimens that are orange, with, at most, basally shagreenate gasters and with less massive petiolar nodes. Both forms are presently regarded as a single variable species.

Keys including this Species

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: 22.5045° to -35.504189°.


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.

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.

Biology

Castes

Nomenclature

The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

striolatum. Tetramorium (Xiphomyrmex) viehmeyeri var. striolatus Viehmeyer, 1914b: 39 (w.) AUSTRALIA. Combination in Xiphomyrmex: Viehmeyer, 1925a: 28; in Tetramorium: Bolton, 1977: 141. Raised to species: Viehmeyer, 1925a: 28.

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

Description

Worker

Bolton (1977) - TL 3.2-3.7, HL 0.76-0.90, HW 0.70-0.82, CI 91-94, SL 0.54-0.64, SI 73-78, PW 0.54-0.68, AL 0.92-1.08 (10 measured).

Mandibles longitudinally striate, anterior clypeal margin without a notch or impression. Frontal carinae extending back almost to occiput as a narrow raised flange, forming the upper margins of the very feeble, shallow scrobe area. Propodeal spines long, stout and acute, the metapleural lobes narrow, triangular, long and acute. Node of petiole in profile relatively long (Fig. 71), the dorsal length greater than the height of the tergal portion of the node. In dorsal view the node is broader behind than in front and is slightly broader than long. Dorsum of head finely longitudinally rugulose, the spaces between the rugulae finely and densely reticulate-punctate. Dorsal alitrunk densely longitudinally rugulose with some cross-meshes, particularly on the pronotum, the spaces densely punctate. Petiole and postpetiole densely and quite coarsely sculptured with reticulate rugulation and dense puncturation; base of first gastral tergite feebly punctulate or shagreened. All dorsal surfaces of head and body with numerous erect or suberect stout hairs. Colour orange-brown.

Type Material

Syntype, worker(s), Killalpaninna, South Australia, Australia, Berlin Museum für Naturkunde der Humboldt-Universität.

References

Andersen, A.N., Brassard, F., Hoffmann, B.D. 2023. Unrecognised ant megadiversity in monsoonal Australia: The Tetramorium spininode Bolton group in the Northern Territory. Diversity 15(4), 476 (doi:10.3390/d15040476).
Bolton, B. 1977. The ant tribe Tetramoriini (Hymenoptera: Formicidae). The genus Tetramorium Mayr in the Oriental and Indo-Australian regions, and in Australia. Bulletin of the British Museum (Natural History). Entomology. 36:67-151. (page 141, Combination in Tetramorium)
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).
Majer, J.D., Castalanelli, M.A., Ledger, J.L., Gunawardene, N.R., Heterick, B.E. 2018. Sequencing the ant fauna of a small island: Can metagenomic analysis enable faster identification for routine ant surveys? Sociobiology 65, 422-432 (doi:10.13102/sociobiology.v65i3.2885).
Viehmeyer, H. 1914b [1913]. Neue und unvollständig bekannte Ameisen der alten Welt. Arch. Naturgesch. (A)79(1 12: 24-60 (page 39, worker described)
Viehmeyer, H. 1925a. Formiciden der australischen Faunenregion. (Fortsetzung.). Entomol. Mitt. 14: 25-39 (page 28, Combination in Xiphomyrmex, Raised to species)

References based on Global Ant Biodiversity Informatics

Bolton, B. "The ant tribe Tetramoriini (Hymenoptera: Formicinae. The genus Tetramorium Mayr in the Oriental and Indo-Australian regions and in Australia." Bulletin of the British Museum (National History): Entomology series 36, no. 2 (1977): 68-151.
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.
Heterick B. E., B. Durrant, and N. R. Gunawardene. 2010. The ant fauna of the Pilbara Bioregion, Western Australia. Records of the Western Australian Museum, Supplement 78: 157-167.
Taylor R. W., and D. R. Brown. 1985. Formicoidea. Zoological Catalogue of Australia 2: 1-149.