Species Account

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Distribution

Summary Data

Season (Adult / Immature):

National Status: Nb

Local Status: Scarce and thinly distributed or restricted resident.

Local Record: Grade 2 See here for explanation

Flight time: One generation, Aug-Sep.

Forewing: 17-20mm.

Foodplant: Silver and Downy Birch.

Regional breakdown:

	VC61	VC62	VC63	VC64	VC65
Year first recorded	1940	1903	1875	1960	2001
Year last recorded	2014	2014	2014	2014	2009
Number of records	39	83	174	102	3
Number of individuals	36	106	193	129	3
Unique positions	21	47	77	33	3
Unique locations	20	47	79	34	3
Adult records	32	76	159	96	3
Immature records	2	0	3	1	0

For the county, we have a total of 401 records from 183 sites. First recorded in 1875.

Photos

Species Account

Sutton & Beaumont, 1989: Recorded both from low-lying heaths and from higher areas where there is mature birch woodland. Central and eastern Yorkshire represents the northern part of the range in England of this distinctly Midlands species. It also occurs in Scotland.

Argus 47, 2001-04:
VC65. Hutton Conyers, 15.8.2001 (CHF); Catterick Garrison, 11.8.2004 (MS). NEW VICE-COUNTY RECORD.

2012 (CHF): This species still remains local in the county in birch woodland but numbers have been good recently (30 - 40 records per year) and there has been spread towards eastern areas of VC61 and slight spread to the north west. Waring's comments that it can be locally numerous are not really true in Yorkshire as there have been no counts in double figures anywhere in the county.

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

Yorkshire Moths
A guide to the moths of VC61-65