Species Account

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Summary Data

Season (Adult / Immature):

National Status: Local

Local Status: Scarce and local resident.

Local Record: Grade 2   See here for explanation

Flight time: One generation, Mar-Apr.

Forewing: 16-19mm.

Foodplant: Downy Birch, Silver Birch.

Regional breakdown:

Year first recorded18831883188318831984
Year last recorded20142013201420142012
Number of records3174137925
Number of individuals571983812063
Unique positions164473472
Unique locations153768442
Adult records2563128835
Immature records00000

For the county, we have a total of 339 records from 166 sites. First recorded in 1883.


70.203 Orange Underwing 02
© Brian Leesey
70.203 Orange Underwing 01
© Terry Box, 26 Mar 2012

Species Account

Sutton & Beaumont, 1989: A fairly local insect, found in well-established birch areas where it flies actively in sunshine. There are now several known localities in all vice-counties except VC65.

Argus 47, 2001-04:
VC65. High Batts 27.3.1984 (SPW). NEW VICE-COUNTY RECORD.

2012 (CHF): Widespread in birch woodland. The paucity of records in the north-west and south-east reflects a lack of suitable habitat. Increased numbers of records in recent years (particularly 2012) are probably due to some fine sunny weather in late March.

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