Polyrhachis compressicornis

Polyrhachis compressicornis appears to be a very rare species that was absent from all recent Sulawesian collections examined. The types in OXUM and a single worker in BMNH are the only specimens I have seen. (Kohout 2008)

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

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

Nomenclature

 *  compressicornis. Polyrhachis compressicornis Smith, F. 1860a: 69 (w.q.) INDONESIA (Sulawesi). Combination in P. (Myrma): Emery, 1925b: 200.

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

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

Smith did not give a type-locality in the original description of this species. The only specimens in that met the original description of this species were these two from Makassar, the worker of which was already regarded as a type by Donisthorpe. I can find no reason to doubt his designation.

References based on Global Ant Biodiversity Informatics

 * 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
 * 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.
 * 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.
 * Robson Simon Database Polyrhachis -05 Sept 2014