Polyrhachis obtusa

Polyrhachis obtusa
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Family:	Formicidae
Subfamily:	Formicinae
Tribe:	Camponotini
Genus:	Polyrhachis
Subgenus:	Chariomyrma
Species:	P. obtusa
Binomial name
Polyrhachis obtusa Emery, 1897 Specimen Labels
Synonyms
Polyrhachis arcuata aruana Karavaiev, 1927

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: -3.089444444° to -9.5°.

North Temperate	North Subtropical	Tropical	South Subtropical	South Temperate

• Source: AntMaps

Distribution based on Regional Taxon Lists

Australasian Region: Australia.
Indo-Australian Region: Indonesia, New Guinea.

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.

Castes

Images from AntWeb

Syntype of Polyrhachis obtusa. Worker. Specimen code casent0905579. Photographer Will Ericson, uploaded by California Academy of Sciences.	Owned by MSNG, Genoa, Italy.

Nomenclature

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

• obtusa. Polyrhachis aurea var. obtusa Emery, 1897d: 589 (w.) NEW GUINEA. Combination in P. (Chariomyrma): Forel, 1915b: 110. Raised to species: Kohout & Taylor, 1990: 516. Senior synonym of aruana: Kohout, 1998: 512.
• aruana. Polyrhachis (Chariomyrma) arcuata var. aruana Karavaiev, 1927e: 16 (w.) INDONESIA (Aru I.). Junior synonym of obtusa: Kohout, 1998: 512.

Type Material

• Syntype, worker(s), Haveri, Kapa Kapa and Humboldt Bay, Papua New Guinea, Musee d'Histoire Naturelle Genève.

References

• Emery, C. 1897e. Viaggio di Lamberto Loria nella Papuasia orientale. XVIII. Formiche raccolte nella Nuova Guinea dal Dott. Lamberto Loria. [concl.]. Ann. Mus. Civ. Stor. Nat. 38[=(2(18): 577-594 (page 589, worker described)
• Forel, A. 1915b. Results of Dr. E. Mjöbergs Swedish Scientific Expeditions to Australia 1910-13. 2. Ameisen. Ark. Zool. 9(1 16: 1-119 (page 110, Combination in P. (Chariomyrma))
• Kohout, R. J. 1998. New synonyms and nomenclatural changes in the ant genus Polyrhachis Fr. Smith (Hymenoptera: Formicidae: Formicinae). Mem. Qld. Mus. 42: 505-531 (page 512, Senior synonym of aruana)
• Kohout, R. J.; Taylor, R. W. 1990. Notes on Australian ants of the genus Polyrhachis Fr. Smith, with a synonymic list of the species (Hymenoptera: Formicidae: Formicinae). Mem. Qld. Mus. 28: 509-522 (page 516, Raised to species)
• Radchenko, A.G., Fisher, B.L., Esteves, F.A., Martynova, E.V., Bazhenova, T.N., Lasarenko, S.N. 2023. Ant type specimens (Hymenoptera, Formicidae) in the collection of Volodymyr Opanasovych Karawajew. Communication 1. Dorylinae, Poneromorpha and Pseudomyrmecinae. Zootaxa, 5244(1), 1–32 (doi:10.11646/zootaxa.5244.1.1).

References based on Global Ant Biodiversity Informatics

• Dahl F. 1901. Das Leben der Ameisen im Bismarck-Archipel, nach eigenen Beobachtungen vergleichend dargestellt. Mitt. Zool. Mus. Berl. 2: 1-70.
• Donisthorpe H. 1947. Ants from New Guinea, including new species and a new genus. Annals and Magazine of Natural History (11)13: 577-595.
• Donisthorpe H. 1948. A fourth instalment of the Ross Collection of ants from New Guinea. Annals and Magazine of Natural History (12)1: 131-143.
• Donisthorpe H. 1948. A second instalment of the Ross Collection of ants from New Guinea. Annals and Magazine of Natural History (11)14: 297-317.
• 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.
• Emery C. 1911. Formicidae. Résultats de l'expédition scientifique néerlandaise à la Nouvelle-Guinée en 1907 et 1909 sous les auspices de Dr. H. A. Lorentz. Nova Guin. 9: 249-259
• Forel A. 1901. Formiciden aus dem Bismarck-Archipel, auf Grundlage des von Prof. Dr. F. Dahl gesammelten Materials. Mitt. Zool. Mus. Berl. 2: 4-37.
• Janda M., G. D. Alpert, M. L. Borowiec, E. P. Economo, P. Klimes, E. Sarnat, and S. O. Shattuck. 2011. Cheklist of ants described and recorded from New Guinea and associated islands. Available on http://www.newguineants.org/. Accessed on 24th Feb. 2011.
• 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., and R. W. Taylor. 1990. Notes on Australian ants of the genus Polyrhachis Fr. Smith, with a synonymic list of the species (Hymenoptera: Formicidae: Formicinae). Memoirs of the Queensland Museum 28: 509-522.
• Robson Simon Database Polyrhachis -05 Sept 2014
• Snelling R. R. 2000. Ants of the Wapoga river area, Irian Jaya, Indonesia. In Mack, Andrew L. and Leeanne E. Alonso (eds.). 2000. A Biological Assessment of the Wapoga River Area of Northwestern Irian Jaya, Indonesia. RAP Bulletin of Biological Assessment 14, Conservation International, Washington, DC.
• 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. 1935. Check list of the ants of Oceania. Occasional Papers of the Bernice Pauahi Bishop Museum 11(11):1-56.
• Wheeler, William Morton.1935.Checklist of the Ants of Oceania.Occasional Papers 11(11): 3-56