The Moths of Suffolk
1782 Fern, Horisme tersata, (Denis & Schiffermüller, 1775)

National Status : Common

Local Status : Resident (SMP Status 1)

Distribution and abundance : Local, never appearing in large numbers

Habitats : Open woodland, grassland, scrub and hedgerows in chalky areas

Flight Period : Single-brooded; mid-June to mid-August

Larval foodplants : Traveller's Joy and possibly cultivated varieties of clematis

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.

Wingspan details : Forewing 14-18mm, Wingspan 31-36mm


Confusion species : None

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Dorset (4.viii.2002) © M Deans

Flight chart
24 100 3

Life history chart
pupa pupa pupa pupa pupa pupaimago imago ovalarvaimago larva pupa pupa pupa

Further Photographs

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Bawdsey, Suffolk ( © Matthew Deans
Bawdsey, Suffolk (24.viii.2009) © Matthew Deans
Wordwell, Kings forest, Suffolk ( © Neil Sherman