Key to Sulawesi Polyrhachis Cyrtomyrma species

This worker key is based on: Kohout, R.J. 2008a. A review of the Polyrhachis ants of Sulawesi with keys and descriptions of new species (Hymenoptera: Formicidae: Formicinae). Memoirs of the Queensland Museum. 52:255-317.

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• subgenus Myrma
• Polyrhachis

1

• Pronotal humeri toothed or angular; propodeal declivity more-or-less obique 2

• Pronotal humeri narrowly rounded; propodeal declivity virtually vertical; body jet-black . . . . . Polyrhachis fornicata

2

• Dorsal petiolar spines distinctly shorter than lateral pair; body black, lightly sculptured . . . . . Polyrhachis gibba

• Dorsal petiolar spines distinctly longer than lateral pair; body jet-black (in copal) . . . . . Polyrhachis celebensis