Species Account

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Summary Data

Season (Adult / Immature):

National Status: Common

Local Status: Uncommon and thinly distributed resident.

Local Record: Grade 2   See here for explanation

Flight time: Aug-Sep.

Forewing: 14-17mm

Foodplant: Birches, Blackthorn, Hawthorns

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 recorded190519821905
Year last recorded201119872011
Number of records64241292
Number of individuals114442296
Unique positions872178
Unique locations691140
Adult records62041248
Immature records306

For the region, we have a total of 1292 records from 140 sites. Earliest record on file is in 1905.


1632 Pale Eggar 06
© Julian Francis
1632 Pale Eggar 05
© Gillian Nash, Sept 2017
1632 Pale Eggar 04
© Gillian Nash, September 2015
1632 Pale Eggar 03
© Gillian Nash, Sept 2012
1632 Pale Eggar 02
© Dave Foot
1632 Pale Eggar 01
© Tom Morris

Species Account

For further information refer UK Moths.

Davey, P., 2009: A species occurring in England and Wales becoming less frequent as one heads north, the larva feeding on hawthorn (Crataegus spp.), blackthorn (Prunus spinosa), birch (Betula spp.), sallow (Salix spp.) and heather (Erica spp.).

In Dorset, the moth occurs at low density in open or wooded districts where blackthorn or hawthorn is frequent. It is rarely observed on sandy soils.

The Pale Eggar appears to have become scarcer in recent years, in parallel with the decimation of blackthorn and hawthorn scrub on downland.

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