The head is uniform in color, not contrasting sharply with rest of body. Used in Antkey to separate Pheidole anastasii and Pheidole bilimeki from Pheidole punctatissima.
Scratchpads developed and conceived by (alphabetical):
Ed Baker,
Katherine Bouton
Alice Heaton
Dimitris Koureas,
Laurence Livermore,
Dave Roberts,
Simon Rycroft,
Ben Scott,
Vince Smith
