This is a typical tiny ground beetle from gravel rivers. Pictures were made along the Allier. The river Allier is known as a reference river in Western Europe. The river has still a very natural course between it's source and the place where it joins the Loire. It is still a natural dynamic ecosystem, with natural sandy and stony gravel river banks, seasonally flooded forests and graslands.The course of the river changes anually, due to the high dynamic of the river.