Species Account

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Summary Data

Season (Adult / Immature):

National Status: Local

Local Status: Scarce and thinly distributed or restricted resident.

Local Record: Grade 2   See here for explanation

Flight time: One generation, May-Jun.

Forewing: 16-22mm.

Foodplant: Ash, Blackthorn, Dog-rose other broadleaved trees.

Regional breakdown:

Year first recorded19041883188318831883
Year last recorded20032014199920142013
Number of records301105418729
Number of individuals211237229128
Unique positions2050176716
Unique locations1951197017
Adult records251014818027
Immature records01010

For the county, we have a total of 410 records from 176 sites. First recorded in 1883.


1918 Lunar Thorn 05
© Andrew Rhodes
1918 Lunar Thorn 04
© Andy Nunn
1918 Lunar Thorn 03
© Terry Box
1918 Lunar Thorn 02
© Terry Box, 28 May 2012
1918 Lunar Thorn 01
© Terry Box, 26 May 2007

Species Account

Sutton & Beaumont, 1989: Occurs locally in wooded areas in all five vice-counties. Occasionally noted as a wanderer in other habitats.

Current status (CHF, 2011): This moth has been lost to central England and is retreating to the uplands, the celtic fringes, and the south-east. There are no recent records from south Yorkshire.

Argus 69, 2013: Whilst this species has disappeared from lowland Yorkshire, it is still doing well in upland woodland. A remarkable 23 were trapped on the YNU outing to Grass Wood [on 7.6.2013, VC64].

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