The depression at the apical end of the pronotum, prominent eyes, elytral punctures in neat rows suggest to me that this flea beetle belongs to the genus Crepidodera.
I tried moving the ID further using this key (1) and ended up at C. browni based on features like the lack of violet reflections, lack of punctures on the vertex of the head, and the fact that the depression in the elytra is noticeable. However, I can’t say I have much confidence in that result. FWIW, there are willow trees nearby which is something mentioned in the key for this species and C. bella.

I’d appreciate confirmation/correction of the genus. TIA.