Species Account

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Summary Data

Season (Adult / Immature):

National Status: Common

Local Status: Scarce and fairly widespread resident.

Local Record: Grade 1   See here for explanation

Flight time: One generation, Jun-Aug.

Forewing: 24-29mm.

Foodplant: Downy Birch, Silver Birch, Hazel, Alder, (Beech)

Regional breakdown:

Year first recorded19041883188318831883
Year last recorded20142014201420142014
Number of records9022022238453
Number of individuals11025038656078
Unique positions579511914613
Unique locations489111314912
Adult records7719919136047
Immature records20003

For the county, we have a total of 969 records from 413 sites. First recorded in 1883.


70.299 Large Emerald 08 larva on birch
© Terry Box, 13 May 2018
70.299 Large Emerald 07 profile
© Colin Duke All Rights Reserved 2018
70.299 Large Emerald 06 Front
© Colin Duke All Rights Reserved 2018
70.299 Large Emerald 05 Detail
© Colin Duke All Rights Reserved 2018
70.299 Large Emerald 04
© Colin Duke All Rights Reserved 2018
70.299 Large Emerald 03
© Andy Nunn
70.299 Large Emerald 02
© Charles Fletcher, 22 Jul 2009
70.299 Large Emerald 01
© Damian Money

Species Account

Sutton & Beaumont, 1989: Although rather patchily recorded, this species is probably common in most birch woods in all five vice-counties and it is sometimes also found well away from such places. It can sometimes be found more easily on a sheet at light and it often turns up late than most other species (PQW pers. comm.), which may be the reason for the paucity of records.

2012 (CHF): Like other birch-feeding species, this moth is uncommon in the north-west and south-east of the county. Apart from this it is fairly widespread and numbers appear to be stable.

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