Trechus rivularis (Gyllenhal, 1810)
Taxonomy: Adephaga > Carabidae > Trechus > Epaphius > Trechus rivularis
Images
Source:
John Walters
Description
Size: 4.3-4.8mm
Basic colour: Dark brown, elytra almost black, irredescent. Segment 2-4 of antennae slightly darkened.
Pronotoum: Dark reddish brown. with sides strongly rounded, with sharp, slightly protruding tooth and hind angles; hind margin straight.
Leg colour: Light brown.
Confusion species: Trechus obtusus
, Confusion species: Trechus quadristriatus
Basic colour: Dark brown, elytra almost black, irredescent. Segment 2-4 of antennae slightly darkened.
Pronotoum: Dark reddish brown. with sides strongly rounded, with sharp, slightly protruding tooth and hind angles; hind margin straight.
Leg colour: Light brown.
Confusion species: Trechus obtusus
, Confusion species: Trechus quadristriatus
Biology
Status: A fenland relict population.
RDB Category: Endangered
Habitat: In litter in lowland fens and upland mires and bogs.
RDB Category: Endangered
Habitat: In litter in lowland fens and upland mires and bogs.