Polyrhachis rugifrons

Specimens have been collected from various forest habitats and from 140-1080 m in elevation.

Identification
A member of the Polyrhachis sexspinosa species group.

Kohout (2008) - The two sexspinosa-group species known from Sulawesi are distinguished as follows:


 * Pronotal spines short, straight, directed laterally in virtually right angle to main axis of body . . . . . Polyrhachis rugifrons


 * Pronotal spines bull-horn shaped, curving laterally and anteriorly . . . . . Polyrhachis spinosa

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

Nomenclature

 *  rugifrons. Polyrhachis rugifrons Smith, F. 1860a: 70 (w.q.) INDONESIA (Sulawesi). Combination in P. (Myrmhopla): Wheeler, W.M. 1919e: 130. Subspecies of sexspinosa: Emery, 1897d: 591. Revived status as species: Wheeler, W.M. 1919e: 130; Emery, 1925b: 191; Karavaiev, 1927e: 25. See also: Bolton, 1975c: 11.

Type Material
Kohout (2008) - Syntype worker, queen. Type locality: INDONESIA, SULAWESI, Makassar (A. R. Wallace), (examined).

One worker syntype and one dealate queen syntype in. Labelled “Mak.” (= Makassar, Sulawesi), the queen with a Donisthorpe type-label.

References based on Global Ant Biodiversity Informatics

 * Bolton B. 1975. The sexspinosa-group of the ant genus Polyrhachis F. Smith (Hym. Formicidae). J. Entomol. Ser. B 44: 1-14
 * Donisthorpe H. 1949. A fifth instalment of the Ross Collection of ants from New Guinea. Annals and Magazine of Natural History (12)1: 487-506.
 * Donisthorpe, Horace. 1941. The Ants of Japen Island, Dutch New Guinea (Hym. Formicidae). The Transactions of the Royal Entomological Society of London. 91(2):51-64.
 * 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.
 * Emery C. 1911. Formicidae. Résultats de l'expédition scientifique néerlandaise à la Nouvelle-Guinée en 1903 sous les auspices de Arthur Wichmann. Nova Guinea 5: 531-539.
 * 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.
 * Smith F. 1863. Catalogue of hymenopterous insects collected by Mr. A. R. Wallace in the islands of Mysol, Ceram, Waigiou, Bouru and Timor. Journal and Proceedings of the Linnean Society of London. Zoology 7: 6-48.
 * Smith F. 1865. Descriptions of new species of hymenopterous insects from the islands of Sumatra, Sula, Gilolo, Salwatty, and New Guinea, collected by Mr. A. R. Wallace. Journal and Proceedings of the Linnean Society of London. Zoology 8: 61-94.
 * Viehmeyer H. 1912. Ameisen aus Deutsch Neuguinea gesammelt von Dr. O. Schlaginhaufen. Nebst einem Verzeichnisse der papuanischen Arten. Abhandlungen und Berichte des Königlichen Zoologischen und Anthropologische-Ethnographischen Museums zu Dresden 14: 1-26.
 * Viehmeyer H. 1914. Papuanische Ameisen. Deutsche Entomologische Zeitschrift 1914: 515-535.
 * Wheeler W. M. 1919. The ants of Borneo. Bulletin of the Museum of Comparative Zoology 63:43-147.