Chlaenius tristis (Schaller, 1783)

Taxonomy: Adephaga > Carabidae > Chlaenius > Chlaenius tristis

Common name: 

Black Night-runner

Images

Chlaenius tristis

Description

Size: 11-13mm
Basic colour: Black, sometimes with a coppery metallic reflection.
Pronotoum: Narrow relative to elytra, sides not sinuate.
Leg colour: Black
Confusion species: Chlaenius nigricornis

UK Priority Species data collation for Chlaenius tristis. 

Biology

Status: Scarce, an isolated relict population. Found at a single remaining site on the Llyn Peninsula, North Wales as well as Kerry and West Meath in Ireland.
RDB Category: Endangered
UKBAP Species: Yes
Habitat: Densely vegetated bogs and flushes.
Other notes: Elytra rather long and convex, pubescence reddish-golden.

Articles

Good, J.A. (2014). A schistomelous specimen of Chlaenius tristis (Schaller) (Carabidae) from central Ireland. The Coleopterist 23(2): 86.
Hodge, P.J. (1997). Chlaenius tristis (Schaller) (Carabidae): a thriving colony in North Wales. The Coleopterist 6(3): 106.

Distribution (may take a minute to appear)