Pogonus chalceus (Marsham, 1802)

Description: A small (5.5-6.5mm) bronze ground beetle with greenish or bluish metallic reflections. Found on saltmarshes and estuaries, where it is often locally common under seaweed and driftwood on the strandline.

NI account: A coastal species and probably found throughout.

Ecology: Halobiontic and thermophilic in sandy or silty saltmarsh environments from the upper middle shore to the Extreme High Water Spring Tide (EHWST).

Distribution: A European Southern-temperate species (83) confined to sea coasts in western and southern Europe, but also known from a few inland saline places in central Europe. Similar forms occur in central Asia.

Similar Species: Pogonus littoralis: anterior transverse impression on pronotum smooth; elytral striae evident to apex (P. luridipennis: elytra and legs pale)

Key Identification Features:

  • Sea shore species
  • Medium, metallic, diurnal
  • Last segment of palpi normal
  • Unicolourous metallic
  • Anterior transverse depression on pronotum punctate
  • Elytral striae fading laterally and apically

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

iNaturalist: Pogonus chalceus at iNaturalist World Species Observations database.

GBIF data for Pogonus chalceus | Classification: Insecta, Coleoptera, Carabidae, Pogonus

Thumbnails for genus Pogonus

 Anderson, R., 2024. Pogonus chalceus. (Marsham, 1802). [In] Ground Beetles of Ireland.
https://www2.habitas.org.uk/beetles/species.php?item=7274. Accessed on 2024-12-26.