Species Account

Select species and region:


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:

 VC61VC62VC63VC64VC65
Year first recorded19401903187519602001
Year last recorded20142014201420142009
Number of records39831741023
Number of individuals361061931293
Unique positions214777333
Unique locations204779343
Adult records3276159963
Immature records20310

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

Photos


2313 Angle-striped Sallow 04
© Andy Nunn
2313 Angle-striped Sallow 03
© Nick Lawman
2313 Angle-striped Sallow 02
© Paul Holmes
2313 Angle-striped Sallow 01
© Terry Box, 2 Sep 2011

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