This summer we had an infestation of gypsy moth caterpillars in this part of New England. The little buggers were especially partial to oak leaves, and left the oak trees in some neighborhoods almost completely defoliated. Other trees were more mildly affected, whether by the gypsy moth caterpillars or other critters. Come fall, the leaves that fell from these trees displayed a range of damage, sometimes creating quite fascinating designs in the remaining bits of leaves.