Agonum Marginatum Beetle

brown beetle

Beetle – Donacia Genus (see comment below)

We saw this large golden brown beetle sat on some cow parsley alongside the River Thames yesterday.

I’m not entirely sure which particular species it is but I am guessing it’s a Agonum Marginatum beetle. Edit: I have subsequent been informed (see comments below) it’s more likely to be one of the Donacia genus as Agonum are ground runners.


  1. This looks to be one of the Donacia genus.
    Agonum are ground runners

    1. Hi Rik. I appreciate the correction. I’m certainly no beetle authority. Many thanks.

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