Key to Polyrhachis cryptoceroides-group species

AntWiki: The Ants --- Online

This worker key is based on: Kohout, R.J. 2006a. A review of the Polyrhachis cryptoceroides species-group with description of a new species from Thailand. Myrmecologische Nachrichten. 8:145-150.

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1

  • Virtually unicoloured; body black, appendages black or dark reddish-brown; anterior clypeal margin deeply emarginate medially (Thailand, Malaysia, Indonesia, Brunei, Philippines) . . . . . Polyrhachis cryptoceroides
Polyrhachis cryptoceroides casent0906756 h 1 high.jpg
Polyrhachis cryptoceroides casent0906756 p 1 high.jpg
  • Distinctly bicoloured; body black, appendages yellow to light reddish-brown; anterior clypeal margin with truncate, medially notched flange, flanked by distinct angles or acute denticles . . . . . 2

2

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  • Lateral margins of mesosoma distinct for most of their length; metanotal groove weakly indicated . . . . . 3
Polyrhachis wroughtonii casent0281405 h 1 high.jpg
Polyrhachis wroughtonii casent0281405 p 1 high.jpg

3

return to couplet #2

  • Head and mesosoma finely reticulate-punctate; clypeus smoothly rounded, without distinct median carina (Sri Lanka) . . . . . Polyrhachis jerdonii
Polyrhachis jerdonii casent0906755 h 1 high.jpg
Polyrhachis jerdonii casent0906755 p 1 high.jpg
  • Head and mesosoma coarsely reticulate-punctate; clypeus with strongly raised median carina (Thailand) . . . . . Polyrhachis thailandica