Risley Moss, Warrington – 15th May 2026


Risley Moss is an 82-hectare Local Nature Reserve and Site of Special Scientific Interest (SSSI) in Warrington, featuring lowland raised bog, woodlands, and meadows. It is also the only known site in Cheshire with an extant population of adders.

iRecord Records Summary

iRecord Records List

Record Highlights

Phthitia plumosula (Sphaeroceridae)

Recorded by: Phil Brighton
Determined by: Phil Brighton

A small and rather featureless species, easily overlooked in the field. This second confirmed record provides confidence in its presence in the county. Nationally, it is sparsely recorded but widely scattered.

Giant Birch Sawfly Cimbex femoratus (Cimbicidae)

Recorded by: Tony Hunter
Determined by: Tony Hunter

One of the largest British sawflies and unmistakable when encountered. Widespread but infrequently encountered.

Euura ampla (Tenthredinidae)

Recorded by: Nicola Garnham
Determined by: Kjeld Brem

Larvae recorded during the field meeting may represent a new record for VC59 and potentially the wider North West, with no regional records currently online.

Heather Shieldbug Rhacognathus punctatus (Pentatomidae)

Recorded by: David Williams
Determined by: David Williams

The only other recent VC59 record away from the Sefton Coast was from Caddishead Moss in 2014. Associated with heathland and moorland.

Craspedolepta nebulosa (Psyllidae)

Recorded by: David Williams
Determined by: Keith Fowler

Only the second known record for VC59. Common and widespread on or around Rose bay Willowherb in Southern Britain. Small psyllids such as this are easily overlooked and potentially under-recorded.

Paradelphacodes paludosa (Delphacidae)

Recorded by: Keith Fowler
Determined by: Keith Fowler

A Notable A species associated with Sphagnum-rich bogs. It has a scattered British distribution, with strongholds in East Anglia and parts of Wales, and only a few outlying sites.