14. Polyrhachis diaphantus ^HNS.

P. niger et vestitus pube argentea; thorace quadrispinoso; petioli squamula bispinosa.

Worker. Length 2 1 / 3 lines. Black, and densely clothed with silky silvery pile; the flagellum has the tips of the basal joints, and six or seven of the apical joints entirely ferruginous; the thorax convex above, the anterior spines short, stout, and acute; the metathorax with two very stout, acute divergent spines; the node of the petiole with two long spines very stout, acute, and curving round the base of the abdomen; the abdomen globose. The anterior tibiae obscurely ferruginous, their base black. (Pl. I. fig. 12.) Hab. Celebes (Tondano).