Morley's Final Catalogue: Of frequent occurrence everywhere among clematis from Bures, Belstead and Bramford to Gorleston. Very rare at Monks Soham. Unnoted west of Bury.

Recent Suffolk Status: Scarce in east Suffolk, more common in the west. Seemingly becoming rarer in recent years.

Life history: Single-brooded.

Identification: The recently discovered Cryptic fern Horisme radicaria is very similar. Main differences are that Cryptic fern does not have a discal spot and has a longer more defined apical streak but these features are subtle and may be difficult to see on worn moths. Cryptic fern is also double-brooded so flies earlier and later in the year than Fern. Any candidate Cryptic ferns will have to be well photographed and kept for dissection to prove the record. Highly likely Cryptic fern will be found in the county in the near future as a probable was seen in Norfolk in 2020 but not confirmed by dissection.

Habitat: Woodlands, hedgerows, scrub, gardens.

Recorded in 37 (64%) of 58 10k Squares. First Recorded in 1960. Last Recorded in 2024. Additional Stats

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