In the low country of South Carolina, I came across a Marsh Fern whose top leaves were rolled into a ball like shape. I remember asking a naturalist friend of mine what insect would do this. His reply... "A Leafroller Moth" - I remember thinking how funny. With all the huge scientific and hard to pronounce Latin names out there... how quaint to call a moth by what it does! Ha Ha!
My insect book, Kaufman Field Guide to Insects of North America, says leafrollers are in the family Tortricidae and that there are over 1,100 species in North America!
So, perhaps this is what you found, Kate?