Species Account

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Summary Data

Season (Adult / Immature):

National Status: Common

Local Status: Very common and widespread resident.

Local Record: Grade 1   See here for explanation

Flight time: Two generations, Mar-May, Jul-Sep.

Forewing: 14-23mm.

Foodplant: Blackthorn, Hawthorn, Hazel, other broadleaved plants.

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 recorded1905200719701905
Year last recorded2011200820112011
Number of records441131929212
Number of individuals7862924016222
Unique positions348217734
Unique locations251118540
Adult records386631908118
Immature records3006

For the region, we have a total of 9212 records from 540 sites. Earliest record on file is in 1905.


1917 Early Thorn 08
© Will Bown
1917 Early Thorn 07
© Julian Francis
1917 Early Thorn 06
© Julian Francis
1917 Early Thorn 05 female
© Julian Francis
1917 Early Thorn 04
© Will Bown, March 2017
1917 Early Thorn 03
© Gillian Nash, March 2015
1917 Early Thorn 02
© Wren Franklin, 7 May 2012
1917 Early Thorn 01
© Tom Morris

Species Account

For further information refer UK Moths.

Davey, P., 2009: A common species in Britain, the larva feeding on a variety of deciduous tree and shrub species. In Dorset, the moth is widespread and frequent. It is common where blackthorn (Prunus spp.) and hawthorn (Crateagus spp.) grow, particularly on chalky soil. It is rare on open heathland. The second brood is twice the size of the first brood.

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