Polyrhachis edentula

Identification
Kohout (2008) - I have examined and directly compared the holotype of Polyrhachis zopyra (OXUM) with the syntypes of P. zopyra edentula and consider they represent separate species. They differ in several characters, including the outline of clypeus that, in lateral view, is weakly, but evenly convex with a flat basal margin in P. edentula, while it is straight and rounds into a weakly impressed basal margin in P. zopyra. The pronotal and petiolar teeth are distinctly more acute in zopyra, while in P. edentula they are shorter with the dorsal petiolar teeth obtuse and situated very close together. The pubescence in P. zopyra is very closely appressed, smooth and rather tidy, with only a few erect hairs arising from the gaster and the dorsum of head. The pubescence in P. edentula is more abundant and somewhat longer, with numerous erect hairs arising from all body surfaces, including the mesosoma and petiole.

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

Nomenclature

 *  edentula. Polyrhachis zopyrus var. edentula Emery, 1900d: 712 (w.) INDONESIA (Sumatra). Forel, 1911b: 212 (q.m.). Combination in P. (Myrma): Emery, 1925b: 204. Raised to species: Kohout, 2008a: 258.

Type Material
Kohout (2008) - Syntype workers. INDONESIA, SUMATRA, D. Tolong, Balighe, Pea Ragia, Si Rambé, Pangherang Pisang (E. Modigliani), (examined).

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. Formiche raccolte da Elio Modigliani in Sumatra, Engano e Mentawei. Annali del Museo Civico di Storia Naturale 40: 661-722.
 * Emery, C. "Formiche raccolte da Elio Modigliani in Sumatra, Engano e Mentawei." Annali del Museo Civico di Storia Naturale Giacomo Doria (Genova) (2) 20, no. 40 (1900): 661-722.
 * Forel A. 1909. Ameisen aus Java und Krakatau beobachtet und gesammelt von Herrn Edward Jacobson. Notes Leyden Mus. 31: 221-232.
 * Forel A. 1911. Ameisen aus Java beobachtet und gesammelt von Herrn Edward Jacobson. II. Theil. Notes Leyden Mus. 33: 193-218.
 * Forel A. 1913. Wissenschaftliche Ergebnisse einer Forschungsreise nach Ostindien ausgeführt im Auftrage der Kgl. Preuss. Akademie der Wissenschaften zu Berlin von H. v. Buttel-Reepen. II. Ameisen aus Sumatra, Java, Malacca und Ceylon. Gesammelt von Herrn Prof. Dr. v. Buttel-Reepen in den Jahren 1911-1912. Zoologische Jahrbücher. Abteilung für Systematik, Geographie und Biologie der Tiere 36:1-148.
 * Robson Simon Database Polyrhachis -05 Sept 2014