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|The Fern Horisme tersata|
Distribution and Abundance: Local.
Primary Habitat: Woodland.
Flight Period: Single brooded from June to August.
Localities: Salcey Forest, Blatherwycke Lake, Fineshade and Bedford Purlieus.
Observations: In my experience the moth is usually seen in small numbers at light and most plentifully on the limestone in north Northants. The only occasion that I have seen it more commonly was on 5 July 1987 at Castor Hanglands when an m.v. light trap was run alongside a large growth of its foodplant, travellers-joy. Irregular light trap records from Old Sulehay Reserve show that in the seven years to 2008 an annual average of seven moths were seen with a high of fifteen in 2004. Of these ten were recorded in Sulehay Forest and five were from Ring Haw.
L.O.N.: 1907. Nr. Oundle. Local.
First Record: 1902, Victoria County History.