Species Account

Select species and region:



Summary Data

Season (Adult / Immature):

National Status: Common

Local Status: Uncommon and thinly distributed or restricted resident.

Local Record: Grade 1   See here for explanation

Flight time: One generation, Oct-Nov, small numbers to late Mar.

Forewing: 13-15mm.

Foodplant: Blackthorn, Hawthorn, sallows, oaks, docks.

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 recorded193519831935
Year last recorded201120112011
Number of records606291270
Number of individuals922571958
Unique positions9110202
Unique locations7910178
Adult records533291124
Immature records000

For the region, we have a total of 1270 records from 178 sites. Earliest record on file is in 1935.


2259 Dark Chestnut 04
© Bagsy
2259 Dark Chestnut 03 (left) with Chestnut
© Gillian Nash, November 2018
2259 Dark Chestnut 02
© Gillian Nash, February 2017
2259 Dark Chestnut 01
© Tom Morris

Species Account

Similar species: 2258 Chestnut.

For further information refer UK Moths.

Davey, P., 2009: A local species in southern Britain, the polyphagous larva feeding nocturnally on various deciduous trees and shrubs. In Dorset, the moth is at low density across the county with no discernible habitat preferences, although the coastal population tends to be marginally higher than those inland. The records indicate a drop in numbers of more than eighty per cent on average, between the autumn and spring peaks.

The moth is similar to the Chestnut2258. Diagnostics include: a squarer apex containing a more pointed tip, not rounded; frequently a distinct pale broad band along the sub-terminal line; often a ground colour much darker than chestnut; tends not to be seen beyond late March.


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