Key to select Polyrhachis (Campomyrma) of Australian

This worker key is based on: Kohout, R.J. 2008. Two new species of Polyrhachis Fr. Smith from Australia, based on formerly quadrinomial taxa. Australian Entomologist. 35:161-171.

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• Polyrhachis
• Australia

1

• Petiolar spines with dorsal pair distinctly longer than lateral pair that are often reduced to mere angles . . . . . 2

• Petiolar spines more-or-less subequal . . . . . Polyrhachis ops

2

return to couplet #1

• Lateral petiolar spines slender and acute, curved strongly backwards and outwards; propodeum with a pair of dorso-medially flattened, upturned spines . . . . . Polyrhachis micans

• Lateral petiolar spines reduced to short teeth or mere angles; propodeum with a pair of very short teeth or tubercles . . . . . 3

3

return to couplet #2

• Body and appendages light to medium reddish-brown, rarely body bicoloured with parts of head and much of mesosoma black or dark brown . . . . . Polyrhachis incerta

• Body entirely black with appendages often dark reddish-brown . . . . . 4

4

return to couplet #3

• Propodeal dorsum very narrow, about 1.5 times longer than wide with parallel lateral margins . . . . . Polyrhachis prometheus

• Propodeal dorsum wider than long with strongly posteriorly converging lateral margins . . . . . P. 'Campo 12' (undescribed)