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.