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Extant: 2 valid subspecies
P. niger; capite thoraceque opacis; abdomine nitido; thorace spinis duabus longis acutis postice armato; squama spinis duabus longis curvatis armata.
Worker. Length 2 1 / 4 lines. Black, the head and thorax opake, and obscurely tinged with blue. Thorax rounded above, the anterior margin unarmed; the metathorax with two long divergent spines; the node of the peduncle with two similar spines, which are curved and extend over the base of the abdomen; the trochanters and the intermediate and posterior coxae pale rufo-testaceous; the legs elongate. The abdomen globose. (PL I. fig. 20.)
Hab. Celebes (Tondano).
Found most commonly in these habitats: 1 times found in rain forest, 1 times found in secondary rain forest, 1 times found in Botanical garden, 1 times found in national forest, 1 times found in primary rain forest.
Collected most commonly using these methods: 3 times Hand collection, 1 times m2 Winkler sifting, 1 times fogging, 1 times hand collected.
Elevations: collected from 600 - 1130 meters, 777 meters average
Type specimens: Holotype of Polyrhachis hippomanes: casent0901873