Polyrhachis arachne

Polyrhachis arachne in one study was found nesting in the internodes of bamboo, with each of these containing 687 workers (median) (n = 10, range: 125-1088 workers). This ant is also known to tend Kermicus wroughtoni inside their nests. Another study found P. arachne within a few nest internodes (2-4, n = 10) that contained 33-340 workers and also in a larger number of leaf pavilions (13 - 23, n = 3) that contained 3-174 workers per pavilion (n = 22). (Dorow and Maschiwitz 1990, Schellerich-Kaaden et al. 1997)

Distribution based on Regional Taxon Lists
Indo-Australian Region: Indonesia. Oriental Region: Thailand.

Nomenclature

 *  arachne. Polyrhachis arachne Emery, 1896f: 249 (w.q.) INDONESIA (Java). Wheeler, G.C. & Wheeler, J. 1990b: 758 (l.). Combination in P. (Myrmhopla): Emery, 1925b: 192. Senior synonym of uncinata: Emery, 1898a: 230. See also: Bingham, 1903: 390; Dorow & Maschwitz, 1990: 73.
 * uncinata. Polyrhachis uncinata André, 1896b: 252 (w.) THAILAND. Junior synonym of arachne: Emery, 1898a: 230.