Amara plebeja is a species of ground beetle native to Europe.

[1][2] The habitat of A. plebeja has been observed to change during the species' life cycle: it reproduces in grass vegetation, and hibernates in deciduous trees.

They fly between these habitats in spring and autumn.

After moving between habitats, A. plebeja autolyse their flight muscles, which are subsequently regrown before traveling to the next habitat.

[3] A. plebeja is typically phytophagous, with seeds being its primary food source, however it is has been observed to be occasionally carnivorous, especially in its larval form.