posterior head margin strongly convex (Pheidole minor)

The posterior margin of the head is strongly convex and arching strongly towards the eyes. Used in Antkey to separate the minor worker of Pheidole obscurithorax from Pheidole teneriffana (flat margin) and Pheidole fervens (weakly convex).

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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