Season (Adult / Immature):
National Status: Local
Local Status: Rare and very local resident.
Local Record: Grade 3 See here for explanation
Flight time: One generation, Sep-Oct.
Foodplant: Herbaceous plants.
|Year first recorded||1905||1997||1905|
|Year last recorded||2011||1998||2011|
|Number of records||153||2||310|
|Number of individuals||255||2||514|
For the region, we have a total of 310 records from 74 sites. Earliest record on file is in 1905.
For further information refer UK Moths.
Davey, P., 2009: A local species with an obscure ecology and confined to southern and eastern England where it occurs on disparate biotypes, the larva is polyphagous on herbaceous plants and deciduous shrubs. In Dorset, the moth occupies two rather different habitats, and in both it is at low density. The first is along the west Dorset coast, commencing at Weymouth and Portland (where it was once frequent), and thence westward to Lyme Regis. The second is river valley habitat, and these include the Rivers: Frome, Yeo, Stour, Iwerne, Crane and the Moors. The following observation within a few hundred metres of the River Crane and within the confines of herb-rich fen habitat is of interest: Edmonsham Fen, four final instar larvae eating flowers of jointed rush at midday on 3 July 2003 (P Davey).
Two moths were observed at times of immigrant activity, and a continental source seems likely for these two individuals: Durlston, at MV on 15 October 1977 (R Bretherton), Iford, at MV on 17 October 1997 (M Jeffes). The Large Ranunculus occurs in Iberia, France, Germany and Austria.