Peritrechus geniculatus


Length 5 to 6 mm.  Peritrechus species have only one or two small spines on the front femora. As in Scolopostethus, a pale spot is present at the sides of the pronotum, although this is not always obvious. P. geniculatus is similar to P. nubilus but the 3rd antennal segment is as thick, or thicker, than the 1st and the pronotum is more elongate. The markings on the upper surface are also usually slightly duller. 

Identification difficulty
Recording advice

Unless identified by a recognised expert, a photo is required and the specimen should be examined with a microscope. In the comments box, state the key or ID method used and describe the size and identifying characters.


Dry grassland and waste areas.

When to see it

Adult: all year.  Overwinters as an adult, becoming active in the spring.

UK Status

Fairly frequent in the southern part of Britain, particularly in the south-east.

VC55 Status

Status in Leicestershire and Rutland not known.

Leicestershire & Rutland Map


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map