Morley's Final Catalogue: Much overlooked, hence dearth of records. Bentley Woods on sugar in June 1894 (Baylis) unrecorded from the Ipswich district; Aldeburgh (Hele); Needham (L); Elmswell (Skepper). Sometimes not uncommon about Yarmouth (Pagets); unnoted at Gorleston.
Recent Suffolk Status: Very local, mainly found in the Brecks where it can be common at some sites. Occasional records elsewhere in the county are thought to be wanderers.
Life history: Single-brooded.
Identification: Reddish light arches is darker in colour than Light arches. In the centre of the forewing, there is a short, thick brown bar in Reddish light arches rather than a scythe-shaped mark found in Light arches.
Habitat: Breck grassland.
Recorded in 21 (36%) of 58 10k Squares. First Recorded in 1894. Last Recorded in 2026. Additional Stats
