Species Account

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Summary Data

Season (Adult / Immature):

National Status: Common

Local Status: Uncommon and thinly distributed resident.

Local Record: Grade 3   See here for explanation

Flight time: Sep-Nov, hibernates to following Spring.

Forewing: 17-19mm

Foodplant: 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 recorded189119851891
Year last recorded201120112011
Number of records547741242
Number of individuals6871031580
Unique positions1226256
Unique locations986208
Adult records500741148
Immature records000

For the region, we have a total of 1242 records from 208 sites. Earliest record on file is in 1891.


2237 Grey Shoulder-knot 03
© Luke Phillips
2237 Grey Shoulder-knot 05
© Gillian Nash, November 2018
2237 Grey Shoulder-knot 04
© Will Bown, November 2015
2237 Grey Shoulder-knot 02
© Paul Harris
2237 Grey Shoulder-knot 01
© Tom Morris

Species Account

For further information refer UK Moths.

Davey, P., 2009: A species found in southern Britain, the larva feeding on oak (Quercus spp.), and abroad also on blackthorn (Prunus spp.), sallow (Salix spp.), elm (Ulmus spp.) and poplar (Populus spp.). The moth hibernates overwinter and pairs during the spring. It is attracted to light traps and is occasionally found at ivy blossom in the autumn or at sallow blossom during the spring. In Dorset, the moth is at low density in deciduous woodland with highest numbers from old oak woods. However, records from districts where oak is absent suggests an alternative food source is used. For example, the moth has been observed regularly at West Bexington and at Shapwick where blackthorn is frequent, and this may be the host foodplant in these localities. The adult occasionally emerges from hibernation during mid-winter mild spells.

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