S. ferruginea; capite maxime longitudinaliter striato; abdomine fusco (operaria major): rufo-testacea, laevis, tota nitidissima nuda flagellis pedibusque pallescentibus (operaria minor).
Worker. Length 2 lines. Ferruginous, the flagellum and legs pale ferruginous; the mandibles stout, finely punctured and with two teeth at their apex; the head very large, longitudinally striated, and with a longitudinal channel behind the scape of the antennae apparently for their reception; the eyes small, inserted forwards at the sides of the head. The metathorax, with two minute spines; the legs pale rufo-testaceous. Abdomen fuscous, smooth and shining.
Worker minor. Length 1 line. Rufo-testaceous, the antennae, thorax, and legs pale testaceous; the head of the ordinary size; entirely smooth and shining.
Hab. Menado.
