Well, this a puzzle 🧐
The CV models of iNaturalist & ObsIdentify are all over the place with IDing this small flea beetle. They suggest genus Neocrepidodera, among others, but it lacks any dimples on its thorax & elytra.
I reckon it might be Aphthona cyparissiae, as it was on Eurphorbia cypressas.
But ... ?
#Heidelberg 🏰
#Photography 📷️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️
#BugOfTheDay 🐞
#MacroPhotography 🔬
#InsectsOfMastodon 🪰
#BackGardenEntomology 🪲
As I said, the CV models of iNat & ObsIdentify picked either Neocrepidodera ferruginea or N. transversa, or other flea beetles depending on the picture, but with little confidence.
Both are relatively common in Germany, while Aphthona cyparissiae, the brown dot leafy spurge flea beetle, is definitely not: just 9 observations on iNat to date.
But overall, judging from the semi-transparent wing cases & lack of dimples on them, it is a better fit.
Plus it was on the right plant, cypress spurge.