petiolar node with flat to concave dorsal face (Crematogaster)
The petiolar node has a flat to concave dorsal face. In Antkey used to separate Crematogaster scutellaris from Crematogaster obscurata.
Illustration:
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Scratchpads developed and conceived by (alphabetical):
Ed Baker,
Katherine Bouton
Alice Heaton
Dimitris Koureas,
Laurence Livermore,
Dave Roberts,
Simon Rycroft,
Ben Scott,
Vince Smith
