Philorhizus sigma (Rossi, 1790)

Taxonomy: Adephaga > Carabidae > Philorhizus > Philorhizus sigma

Images

Philorhizus sigma
Philorhizus sigma

Description

Size: 3.4-4.4mm
Basic colour: Brown
Pattern colour: Head black, pronotum bright reddish, elytra straw-coloured with a dark sutural mark and transverse band leaving apices completely pale.
Pronotoum: Bright reddish. Transverse rather contracted basally.
Leg colour: Pale.
Confusion species: Philorhizus vectensis

Biology

Status: Scarce. Local in Norfolk, Yorkshire and Lincolnshire.
RDB Category: Vulnerable
Habitat: Marshes, fens and at the margins of standing fresh water.
Other notes: Elytra elongate, widened apically and with shoulders completely rounded; strias very fine; wings usually absent.

Articles

Allen, A.J. & Duff, A.G. (2014). Philorhizus sigma (Rossi) (Carabidae) rediscovered in South Hampshire. The Coleopterist 23(2): 53.

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