Polyrhachis corporaali

Nothing is known about the biology of Polyrhachis corporaali.

Identification
Kohout (2006): Described by Santschi as the "smallest known variety of Polyrhachis rastellata". It is easily separated from that species by its much smaller size, distinctly toothed pronotal shoulders and closely approximated frontal carinae resulting in an extremely narrow central area.

Distribution
Known only from type locality (see below).

This taxon was described from Indonesia (Sumatra).

Castes
The male of this species is unknown. According to information in the description (see below) the type queen was described from a specimen collected 4 years after the 2 worker types. It is unclear how these castes could be reliable associated with one another.

Worker
Long: 4 mm. Noire. Pattes brun noir avec les tibias plus clairs. Luisante. Superficiellement reticultee, presque lisse, les cotes plus fortement sculptes, un peu rugueux vers les hanches. Le devant de l'ecaille strie en travers. Quelques poils courts isoles sur la tete et vers le bout du gastre, le reste glabre. Pronotum plus large aux angles anterieurs, qui sont mousses. Convexite du thorax assez accusee devant, avec l'angle de l'epinotum arrondi mais distinct. Ecaille plus epaisse, les epines medianes reduites a de simples tubercules, les laterales plus ou moins fortes.

Queen
Long: 6 mm. Couleur et sculpture de (worker). Aile enfumee a nervure brune, longue de 8 mm. Ecaille et le reste comme chez (worker).

Type Material
Syntype workers from - as reported by Kohout (2006).

Type Locality Information
INDONESIA, Sumatra, Medan; 27-II-1921 - 1 queen, 1917 - 2 workers; col. J.B. Corporaal.