Larval track of pygmy eye-capped moth (Stigmella caryaefoliella) on Carya cordiformis leaf, The Ramble, Central Park, Manhattan, 2022-09-03
Larval track of pygmy eye-capped moth (Stigmella caryaefoliella) on Carya cordiformis leaf, The Ramble, Central Park, Manhattan, 2022-09-03
On what I think was Riverbank Grape (136239157).
Not certain on ID. Improvement welcomed.
There was leafminer track (here) and a stem gall (136239159) affecting the same leaf. (See photo 2.) I couldn't come up with something which would cause both. So I've taken my best guess for each separately, factoring in my best guess on the host plant ID. That gets pretty iffy!