Small 1 cm caterpillar on willow
No identification made yet.
No interactions present.
I'm pretty sure it's a micro-moth of some sort, but can't help beyond that I'm afraid. There are a lot of species that feed on willow! Best thing to do would be to rear it out and then post a photo of the adult here on iSpot.
Entomologist and biological recorder
Lat/Lng: 51.5, -2.6
OS grid ref: ST6282