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. E. nigra; capite thoraceque rugosis; abdomine ovato laevi nitido; squama in utroque latere spina horizontali; femoribus pallide testaceus.
Worker. Length 2 lines. Black, and thinly covered with erect black hairs; the head and thorax rather finely rugose; the antennae pubescent, with the extreme tip pale testaceous; the eyes round and very prominent. The anterior margin of the prothorax arched with a short acute spine at the lateral angles; the thorax is deeply constricted in the middle, the metathorax rounded behind; the roughness of the thorax gives its margins a crenulated appearance; the coxae, trochanters, and base of the femora pale rufo-testaceous; the claw-joint of the tarsi rufo-testaceous. Abdomen globose, shining, and very finely punctured.
Hab. Celebes (Tondano).