Polyrhachis chalybea

Distribution
This taxon was described from Singapore.

Nomenclature

 *  chalybea. Polyrhachis chalybeus Smith, F. 1857a: 61 (w.) SINGAPORE. Combination in P. (Myrmhopla): Wheeler, W.M. 1919e: 131. Senior synonym of sappho: Dorow, 1995: 55.
 * sappho. Polyrhachis sappho Forel, 1911e: 299 (w.) INDONESIA (Sumatra). Combination in P. (Myrmhopla): Emery, 1925b: 194. Junior synonym of chalybea: Dorow, 1995: 55.

Polyrhachis chalybeus

Holotype worker in. Labelled “MAL-CA,” and with a Donisthorpe type-label. Smith gives the type-locality as “Singapore, Malacca.” Specimens are also present in from Sarawak (SAR.) and Sumatra (SUM.). One Sumatra specimen has the gaster very finely and densely reticulate-punctate. Normal variation or a separate species?