Polyrhachis trophima

Polyrhachis trophima
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Family:	Formicidae
Subfamily:	Formicinae
Tribe:	Camponotini
Genus:	Polyrhachis
Subgenus:	Hedomyrma
Species:	P. trophima
Binomial name
Polyrhachis trophima Smith, F., 1863 Specimen Labels

Distribution

Distribution based on Regional Taxon Lists

Indo-Australian Region: Indonesia (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.

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

Holotype of Polyrhachis trophima. Worker. Specimen code casent0901815. Photographer Will Ericson, uploaded by California Academy of Sciences.	Owned by OUM, Oxford, UK.

Nomenclature

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

• trophima. Polyrhachis trophimus Smith, F. 1863: 14 (w.) INDONESIA (Seram I.). Combination in P. (Hagiomyrma): Emery, 1925b: 185; in P. (Chariomyrma): Donisthorpe, 1932c: 469; Dorow, 1995: 21; in P. (Hedomyrma): Kohout, 2013: 491.

Type Material

• Holotype, worker, Seram Island, Indonesia, A.R. Wallace, Oxford University Museum of Natural History.

The following notes on F. Smith type specimens have been provided by Barry Bolton (details):

Polyrhachis trophimus

Holotype worker in Oxford University Museum of Natural History. Labelled “Cer. E” (= Seram I.) and with a Donisthorpe type-label.

Description

Kohout (2013): Polyrhachis trophima was placed by Dalla Torre (1893: 271), Emery (1925: 185) and Chapman & Capco (1951: 267) in the subgenus Hagiomyrma and by Donisthorpe (1932: 469), Bolton (1995: 359) and Dorow (1995: 21) in the subgenus Chariomyrma. I have examined the unique holotype of P. trophima and found it remarkably similar to Polyrhachis calliope Emery, a species described in 1900 from New Guinea. It features pronotal humeri armed with short, but distinct spines and a petiole with a flat dorsum, a combination of characters identifying members of the subgenus Hedomyrma Forel.

References

• Donisthorpe, H. 1932c. On the identity of Smith's types of Formicidae (Hymenoptera) collected by Alfred Russell Wallace in the Malay Archipelago, with descriptions of two new species. Ann. Mag. Nat. Hist. 10(10): 441-476 (page 469, Combination in P. (Chariomyrma))
• Dorow, W. H. O. 1995. Revision of the ant genus Polyrhachis Smith, 1857 (Hymenoptera: Formicidae: Formicinae) on subgenus level with keys, checklist of species and bibliography. Cour. Forschungsinst. Senckenb. 185: 1-113 (page 21, Combination in P. (Chariomyrma))
• Emery, C. 1925d. Hymenoptera. Fam. Formicidae. Subfam. Formicinae. Genera Insectorum 183: 1-302 (page 185, Combination in P. (Hagiomyrma))
• Kohout, R.J. 2013. Revision of Polyrhachis (Hagiomyrma) Wheeler, 1911 (Insecta: Hymenoptera: Formicidae: Formicinae). Memoirs of the Queensland Museum, Nature 56, 487-577.
• Smith, F. 1863a. Catalogue of hymenopterous insects collected by Mr. A. R. Wallace in the islands of Mysol, Ceram, Waigiou, Bouru and Timor. J. Proc. Linn. Soc. Lond. Zool. 7: 6-48 (page 14, worker described)

References based on Global Ant Biodiversity Informatics

• 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
• Kohout R.J. 2013. Revision of Polyrhachis (Hagiomyrma) Wheeler, 1911 (Insecta: Hymenoptera: Formicidae: Formicinae). Memoirs of the Queensland Museum – Nature 56: 487–577
• 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.
• 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.