Description: A 7-9.5mm long black beetle, with brassy or purplish elytra and bright green reflecting, metallic foreparts. It occurs on open, moderately dry ground, including arable land. Widely distributed.

NI account: Widespread and common throughout.

Ecology: Next to Agonum fuliginosum probably the most widespread of the genus. Occurs frequently on agricultural land and a variety of peatlands, as well as in riparian habitats.

Distribution: A Eurosiberian Wide-temperate species (64), widespread in Europe except the extreme north, east to western Siberia. Introduced in North America.

Similar Species: Separated from all other Agonum by the bicoloured dorsum with green pronotum and bronze or purplish elytra, although unicolourous black specimens do occur. These are identifiable by the flat elytral intervals and fine striae

Key Identification Features:

• Medium, pronotum narrower than elytra, hind angles rounded
• Legs long and slender
• Mentum with median tooth (Fig. 103)
• Claws simple
• Elytral striae very fine, intervals flat
• Upper surface metallic, forebody green, hind body brassy

Distribution Map from NBN: Agonum muelleri at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Agonum muelleri at iNaturalist World Species Observations database.

GBIF data for Agonum muelleri | Classification: Insecta, Coleoptera, Carabidae, Agonum

Thumbnails for genus Agonum