Tetramorium noratum

This species has been found in forest habitat litter-samples. Heterick & Kitching (2022) collected this species in a pitfall trap within a lowland dipterocarp forest in Brunei.

Distribution based on Regional Taxon Lists
Indo-Australian Region: Borneo, Indonesia, Malaysia.

Nomenclature

 *  noratum. Tetramorium noratum Bolton, 1977: 81, fig. 9 (w.) WEST MALAYSIA.

Worker
Holotype. TL 4.5, HL 1.04, HW 0.98, CI 94, SL 0.96, SI 98, PW 0.72, AL 1.22.

Mandibles striate, clypeus with a shallow median impression in the anterior margin. Sides of head evenly shallowly convex, the eyes prominent and quite small, maximum diameter c. 0.20. In full-face view the occipital margin broadly and quite deeply concave. Frontal carinae strongly developed and extending back almost to the occipital margin where they merge into the rest of the sculpture. Antennal scrobes poorly developed, represented by a groove below the frontal carinae which is mostly unsculptured but is considerably shorter than the scape. Pronotal corners angulate in dorsal view. Propodeal spines very long, the metapleural teeth triangular, acute and slightly upcurved. Dorsum of petiole longer than broad, the true dorsal surface a narrow strip as the sides of the petiole are convergent dorsally. In profile the dorsal surface of the petiole is strongly convex and meets the anterior face through a shallow curve so that the two are not separated by an angle. Postpetiole strongly convex dorsally. Head reticulate-rugose, more strongly so posteriorly as anteriorly the cross-meshes tend to be reduced or absent, leaving only the longitudinal component. Dorsal ali trunk reticulate-rugose but more loose and disorganized than on the head, the rugae forming sharp raised ridges. Petiole, post petiole and gaster completely unsculptured, smooth and highly polished. Dorsal surfaces of body with numerous erect or suberect hairs, those on the head and alitrunk longer than those on the gaster. The longest head and ali trunk hairs twice as long as the maximum diameter of the eye. Colour light brown, shining.

Paratypes. As holotype, with a range of: TL 4.0-4.6, HL 0.98-1.06, HW 0.88-0.98, CI 90-95, SL 0.84-0.98, SI 95-100, PW 0.68-0.74, AL 1.14-1.22 (12 measured).

Type Material
Holotype worker, West Malaysia: Malaya, Pahang, Fraser's Hill, c. 1220 m, hill forest, l5.viii.1967 (R. Crozier). Paratypes. West Malaysia: 12 workers with same data as holotype. Borneo: 1 worker, Pulau Laut c. 6 km E. Stagen dock, 3.vii.1972, rain forest (w. L. Brown) (MCZC; ).

References based on Global Ant Biodiversity Informatics

 * 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.
 * 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.
 * Bruhl C.A., and T. Eltz. 2010. Fuelling the biodiversity crisis: species loss of ground-dwelling forest ants in oil palm plantations in Sabah, Malaysia (Borneo). Biodivers. Conserv. 19(2): 519-529.
 * Floren A., W. Wetzel, and M. Staab. 2013. The contribution of canopy species to overall ant diversity (Hymenoptera: Formicidae) in temperate and tropical ecosystems.  Myrmecological News 19: 65-74.
 * Hashimoto Y., Y. Morimoto, E. S. Widodo, and M. Mohamed. 2006. Vertical distribution pattern of ants in a Bornean tropical rainforest (Hymenoptera: Formicidae). Sociobiology 47(3): 697- 710.
 * Hashimoto Y., Y. Morimoto, and M. Mohamed. 2002. Species list of ground and leaf litter ants collected in Lower Kinabatangan. Lower Kinabatangan : scientific expedition 2002/ 13-18.
 * Hashimoto Y., Y. Morimoto, and M. Mohamed. 2003. Species List of Ground and Leaf Litter Ants Collected in Lower Kinabatangan. Pp 13-18. In Lower Kinabatangan Scientific Expedition 2002, 176 pp. ISBN-13: 983-2369-11-8
 * Hashimoto Y., and M. Mohamed. 2004. A preliminary survey of ant fauna at Crocker Range Park. In: Maryati Mohamed, Zulhazman Hamzah, T. Tachi & J. Nais (eds.). Crocker Range scientific expedition 2002. Kota Kinabalu: Universiti Malaysia Sabah, pp. 51-71.
 * Pfeiffer M.; Mezger, D.; Hosoishi, S.; Bakhtiar, E. Y.; Kohout, R. J. 2011. The Formicidae of Borneo (Insecta: Hymenoptera): a preliminary species list. Asian Myrmecology 4:9-58
 * Sukimin S., M. Mohamed, and H. Aris. 2010. Ant diversity of Maliau Basin Conservation Area, Sabah, Malaysia. Journal of Tropical Biology and Conservation 6:89-101.
 * Woodcock P., D. P. Edwards, R. J. Newton, C. Vun Khen, S. H. Bottrell, and K. C. Hamer. 2013. Impacts of Intensive Logging on the Trophic Organisation of Ant Communities in a Biodiversity Hotspot. PLoS ONE 8(4): e60756. doi:10.1371/journal.pone.0060756
 * Woodcock P., D. P. Edwards, T. M. Fayle, R. J. Newton, C. Vun Khen, S. H. Bottrell, and K. C. Hamer. 2011. The conservation value of South East Asia's highly degraded forests: evidence from leaf-litter ants. Phil. Trans. R. Soc. B. 366: 3256-3264.
 * Woodcock P., D.P. Edwards, T.M. Fayle, R.J. Newton, C. Vun Khen, S.H. Bottrell, and K.C. Hamer. 2011. The conservation value of South East Asia's highly degraded forests: evidence from leaf-litter ants. Phil. Trans. R. Soc. B 366: 3256-3264.