The figure illustrates the feeding patterns of the caterpillars. Gnawing holes in blades is a typical and unusual trait. It may be related to the fact that caterpillars like to be hiding in the underside of leaves.
Scratchpads developed and conceived by (alphabetical):
Ed Baker,
Katherine Bouton
Alice Heaton
Dimitris Koureas,
Laurence Livermore,
Dave Roberts,
Simon Rycroft,
Ben Scott,
Vince Smith