The postpetiole of the major and minor worker is distinctly larger in volume than the petiole. Used in Antkey to separate Pheidole megacephala from other species of Pheidole.
Scratchpads developed and conceived by (alphabetical):
Ed Baker,
Katherine Bouton
Alice Heaton
Dimitris Koureas,
Laurence Livermore,
Dave Roberts,
Simon Rycroft,
Ben Scott,
Vince Smith
