Emerged from a frass-covered cocoon in a mine in a shagbark hickory leaf (the one pictured on p. 347 of (1)
, which should make this P. caryaealbella
or P. olivaeformis
. Looks pretty similar to the latter, but I haven't found an image of the former to compare.
The mine was collected on 9/23/2008; the moth probably emerged the following spring (all I know is I photographed it on 5/1/2010).