Species Account

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Summary Data

Season (Adult / Immature):

National Status: Local

Local Status: Scarce and very local resident.

Local Record: Grade 1   See here for explanation

Flight time: One generation, Jun-Jul.

Forewing: 14-17mm.

Foodplant: Pedunculate Oak. Sessile Oak.

IMPORTANT - Please note that the maps and accounts are provisional, subject to change and further update.  The whole dataset still needs to go through the final verification process and it is likely that a very small number of records will not satisfy the present requirements and there are other records that have not been formally submitted.  The information is for guidance only.

Record breakdown:

Year first recorded190519831905
Year last recorded201120102011
Number of records22652556
Number of individuals531641190
Unique positions868188
Unique locations678150
Adult records21850536
Immature records000

For the region, we have a total of 556 records from 150 sites. Earliest record on file is in 1905.


1667 Blotched Emerald 01
© Tom Morris

Species Account

For further information refer UK Moths.

Davey, P., 2009: A locally common species limited to southern and eastern England and Wales, the larva feeds on oak (Quercus spp.). In Dorset, the moth is local and confined to woodland containing oak where it can occasionally be common: Boys Wood, fifty-eight at MV light on 15 June 2003 (C Manley, P Davey). It is seldom encountered far from deciduous woodland. The following specimen was trapped at the end of a famously warm summer and is likely to have been a second brood individual: Holnest, at MV on 14 September 1959 (H Moore).

See background to species accounts.  Index of Vernacular names - Search - Random Species