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Tetramorium yerburyi
| Tetramorium yerburyi | |
|---|---|
| |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Crematogastrini |
| Genus: | Tetramorium |
| Species group: | tortuosum |
| Species: | T. yerburyi |
| Binomial name | |
| Tetramorium yerburyi Forel, 1902
| |
Nothing is known about the biology of Tetramorium yerburyi.
Identification
Bolton (1977) - Of the three species of this group occurring in Sri Lanka two (Tetramorium pilosum and yerburyi) are endemic, and a third, Tetramorium tortuosum, is also found in south India. (The fourth Sri Lankan species, Tetramorium smithi, is widespread in the Oriental region but does not belong to this group.) T. pilosum and yerburyi are closely related and share the character of having the postpetiole sculptured. In tortuosum this sclerite is smooth. The two endemic Sri Lankan species are quickly separable by the shape of the pedicel, and a comparison of Figs 6 and 7 conveys these differences better than a verbal description.
Keys including this Species
Distribution
Reported from Yunnan, China (Huang & Zhou, 2007; Guenard & Dunn, 2012) but this is considered to be dubious by Agavekar et al. (2017) who treat this taxon as endemic to India (although it was described from Sri Lanka).
Akbar et al. (2023) - Tetramorium yerburyi is reported from the southern Indian states of Kerala and Tamil Nadu, as well as from parts of Sri Lanka.
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Latitudinal Distribution Pattern
Latitudinal Range: 7.293001° to 7.293001°.
| North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: AntMaps
Distribution based on Regional Taxon Lists
Oriental Region: India, Sri Lanka (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
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- yerburyi. Tetramorium (Xiphomyrmex) pilosum r. yerburyi Forel, 1902c: 238 (w.) SRI LANKA. Raised to species: Bingham, 1903: 187. See also: Bolton, 1977: 85.
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 4.2-5.0, HL 1.02-1.10, HW 0.94-1.04, CI 90-95, SL 0.94-1.02, SI 98-102, PW 0.70-0.74, AL 1.24-1.36 (11 measured).
Mandibles striate. Frontal carinae extended back almost to the occipital margin, becoming confused with the sculpture close to the margin, the latter broadly and distinctly concave. Scapes of moderate length, SI in range given above. Antennal scrobes feebly developed, merely a short, shallow impression below the anterior half of the frontal carina. Pronotal corners rounded in dorsal view. Propodeal spines long and acute, meta pleural lobes very obtusely triangular, variable in shape. Petiole shape in profile characteristic of the species, the anterior face straight and vertical, the dorsal surface flat or at most very feebly convex, the two meeting in a sharply defined right-angle. The node itself is longer than high and the post petiole is broadly rounded above in profile. In dorsal view petiole node narrowed in front. Head longitudinally rugose, finely reticulated posteriorly. Dorsal alitrunk with a rugoreticulum which is coarser than that on the head though less clearly defined. Dorsal surfaces and sides of petiole and post petiole rugose, usually reticulate on the sides; the postpetiolar dorsum with weaker sculpture than the petiole, often longitudinal. Dorsal surfaces of head and body with numerous hairs, some of which are extremely long and fine. Colour orange-brown.
Type Material
Bolton (1977) - Syntype workers, Sri Lanka (Yerbury) (Musee d'Histoire Naturelle Genève) [examined].
References
- Agavekar, G.; Hita Garcia, F.; Economo, E.P. 2017. Taxonomic overview of the hyperdiverse ant genus Tetramorium Mayr (Hymenoptera, Formicidae) in India with descriptions and X-ray microtomography of two new species from the Andaman Islands. PeerJ 5:e3800. (doi:10.7717/peerj.3800).
- Akbar, S. A.; Schifani, E.; Bharti, H.; Wachkoo, A. A. 2023. Taxonomic overview of the Tetramorium tortuosum group (Hymenoptera, Formicidae) in India and Sri Lanka, with descriptions of three new species from the Western Ghats biodiversity hotspot. Annales Zoologici Fennici 60:109-126. (doi:10.5735/086.060.0112).
- Bingham, C. T. 1903. The fauna of British India, including Ceylon and Burma. Hymenoptera, Vol. II. Ants and Cuckoo-wasps. London: Taylor and Francis, 506 pp. (page 187, Raised to species)
- 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.
- Forel, A. 1902c. Myrmicinae nouveaux de l'Inde et de Ceylan. Rev. Suisse Zool. 10: 165-249 (page 238, worker described)
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.
- Chapman, J. W., and Capco, S. R. 1951. Check list of the ants (Hymenoptera: Formicidae) of Asia. Monogr. Inst. Sci. Technol. Manila 1: 1-327
- Dias R. K. S. 2006. Current taxonomic status of ants (Hymenoptera: Formicidae) in Sri Lanka. The Fauna of Sri Lanka: 43-52. Bambaradeniya, C.N.B. (Editor), 2006. Fauna of Sri Lanka: Status of Taxonomy, Research and Conservation. The World Conservation Union, Colombo, Sri Lanka & Government of Sri Lanka. viii + 308pp.
- Dias R. K. S., K. R. K. A. Kosgamage, and H. A. W. S. Peiris. 2012. The Taxonomy and Conservation Status of Ants (Order: Hymenoptera, Family: Formicidae) in Sri Lanka. In: The National Red List 2012 of Sri Lanka; Conservation Status of the Fauna and Flora. Weerakoon, D.K. & S. Wijesundara Eds., Ministry of Environment, Colombo, Sri Lanka. p11-19.
- Forel A. 1902. Myrmicinae nouveaux de l'Inde et de Ceylan. Rev. Suisse Zool. 10: 165-249.
- Forel A. 1903. Les Formicides de l'Empire des Indes et de Ceylan. Part X. J. Bombay Nat. Hist. Soc. 14: 679-715.
- Guénard B., and R. R. Dunn. 2012. A checklist of the ants of China. Zootaxa 3558: 1-77.
- Huang Jian-hua, and Zhou Shan-yi. 2007. Checklist of Family Formicidae of China - Myrmicinae (Part III). (Insecta; Hymenoptera). Journal of Guangxi normal University: Natural Science Edition 25(3): 88-96.
- Tiwari R. N. 1999. Taxonomic studies on ants of southern India (Insecta: Hymenoptera: Formicidae). Memoirs of the Zoological Survey of India 18(4): 1-96.
- Tiwari, R.N. 1999. Taxonomic studies on ants of southern India (Insecta: Hymenoptera: Formicidae). Memoirs of the Zoological Survey of India 18(4):1-96