Polyrhachis rixosa

Specimens have been collected from a range of lowland Sulawesi forest habitats from 100 - 600 m.

Identification
A member of the Polyrhachis relucens species group in the subgenus Myrma.

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

Nomenclature

 *  rixosa. Polyrhachis rixosus Smith, F. 1858b: 68 (q.) INDONESIA (Sulawesi). Combination in P. (Myrma): Emery, 1925b: 202. Senior synonym of lycidas: Kohout, 1998: 523.
 * lycidas. Polyrhachis lycidas Smith, F. 1861b: 43, pl. 1, fig. 23 (w.) INDONESIA (Sulawesi). Mayr, 1867a: 58 (q.). Combination in P. (Myrma): Wheeler, W.M. 1919e: 123. Junior synonym of rixosa: Kohout, 1998: 523.

Type Material
Kohout (2008) - Holotype queen. INDONESIA, SULAWESI, (examined).

Polyrhachis lycidas

Holotype worker in. Labelled “Tond.” (= Tondano, Sulawesi) and with a Donisthorpe type-label.

References based on Global Ant Biodiversity Informatics

 * Andersen A. N., R. J. Kohout, and C. R. Trainor. 2013. Biogeography of Timor and Surrounding Wallacean Islands: Endemism in Ants of the Genus Polyrhachis Fr. Smith. Diversity 5: 139-148.
 * 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
 * Davidson D. W., S. C. Cook, R. R. Snelling and T. H. Chua. 2003. Explaining the Abundance of Ants in Lowland Tropical Rainforest Canopies. Science 300: 969-972.
 * Emery C. 1886. Saggio di un catalogo sistematico dei generi Camponotus, Polyrhachis e affini. Memorie della Reale Accademia delle Scienze dell'Istituto di Bologna 5: 363-382
 * Emery C. 1901. Formiciden von Celebes. Zoologische Jahrbücher. Abteilung für Systematik, Geographie und Biologie der Tiere 14:565-580.
 * Hashimoto Y., and S. Yamane. 2014. Comparison of foraging habits between four sympatric army ant species of the genus Aenictus in Sarawak, Borneo. Asian Myrmecology 6: 95-104.
 * Jaitrong W.; Nabhitabhata, J. 2005. A list of known ant species of Thailand. The Thailand Natural History Museum Journal 1(1): 9-54.
 * Kohout R. J. 1998. New synonyms and nomenclatural changes in the ant genus Polyrhachis Fr. Smith (Hymenoptera: Formicidae: Formicinae). Memoirs of the Queensland Museum 42: 505-531
 * Kohout R.J. 2008. A new Polyrhachis (Myrma) vestita-group species from Sulawesi. Zoologische Mededeelingen, Leiden 82: 297-302.
 * Kohout, R. J. 2008. A review of the Polyrhachis ants of Sulawesi with keys and descriptions of new species (Hymenoptera: Formicidae: Formicinae). Memoirs of the Queensland Museum 52:255-317.
 * 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
 * Robson Simon Database Polyrhachis -05 Sept 2014
 * Smith F. 1861. Catalogue of hymenopterous insects collected by Mr. A. R. Wallace in the islands of Ceram, Celebes, Ternate, and Gilolo. [part]. Journal and Proceedings of the Linnean Society of London. Zoology 6: 36-48.
 * Tanaka H. O., S. Yamane, and T. Itioka. 2012. Effects of a fern-dwelling ant species, Crematogaster difformis, on the ant assemblages of emergent trees in a Bornean tropical rainforest. Ann. Entomol. Soc. Am. 105(4): 592-598.
 * Wheeler W. M. 1919. The ants of Borneo. Bulletin of the Museum of Comparative Zoology 63:43-147.
 * Yamane S.; Nona, A. R. 1994. Ants from Lambir Hills National Park, Sarawak. Pp. 222-226 in: Inoue, T.; Hamid, A. A. (eds.) 1994. Plant reproductive systems and animal seasonal dynamics. Long-term study of dipterocarp forests in Sarawak. Kyoto: Center for Ecological Research, Kyoto University, vii + 255 pp.