The vertical height of the petiole measured in profile from the lowest point of the subpetiolar process to a line that intersects the highest point of the dorsal outline (Bolton & Fisher 2011).
Scratchpads developed and conceived by (alphabetical):
Ed Baker,
Katherine Bouton
Alice Heaton
Dimitris Koureas,
Laurence Livermore,
Dave Roberts,
Simon Rycroft,
Ben Scott,
Vince Smith