Anchomenus dorsalis (Pontoppidan, 1763) = Platynus dorsalis

Morphology

Insect measuring 6-8 mm long, winged with body flattened.
The head and pronotum metallic green.
The elytra fawn in color and show a large posterior spot in bluish green.
The base of the antennae and legs are also fawn.

Interest

The adults emerge in April, May and June. They eat eggs of slugs and insects, including aphids and other small  insects.

Habitat

It lives in open environments, in cropland and meadows, usually on sols gravelly or clay, often chalky soils.
Highly common, often in densely populated colonies, it overwinters as colonies of adults, under stones or dead wood lying around the margins of the plot of land.