While ever there are leaves on the trees it is worth the effort having a quick look for leaf mining activity.
The are still plenty of leaves on the Goat Willow around here and as a result a good scattering of tenanted mines of Ectoedemia intimella on pretty much all of the trees I search.
There are still larval cases of some of the Coleophorids to be found, here are a few of my relatively recent finds:
Coleophora albitarsella on Ground Ivy
Coleophora solitariella on Stitchwort
Coleophora limosipennella on Elm