Species Account

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Summary Data

Season (Adult / Immature):

National Status: Migrant

Local Status: Abundant and widespread migrant/wanderer.

Local Record: Grade 1   See here for explanation

Flight time: Recorded all year, mainly May-Sep.

Forewing: 13-21mm.

Foodplant: Many plants.

Regional breakdown:

Year first recorded18841930184618861960
Year last recorded20142014201420142015
Number of records138914432433564501727
Number of individuals2386821474910961213595233
Unique positions398446399520125
Unique locations338398373517116
Adult records137644348415362731709
Immature records173100

For the county, we have a total of 30835 records from 1742 sites. First recorded in 1846.


73.015 Silver Y 07
© Terry Box, 20 Aug 2020
73.015 Silver Y 06 larva on prickly lettuce
© Andrew Rhodes
73.015 Silver Y 05
© Nick Lawman
73.015 Silver Y 03
© Andy Nunn
73.015 Silver Y 04 larva on mugwort
© Derek Parkinson
73.015 Silver Y 02
© Paul Kipling, 16 Jun 2011
73.015 Silver Y 01
© Damian Money

Species Account

Sutton & Beaumont, 1989: A ubiquitous migrant, recorded from all five vice-counties. It often becomes common in the autumn when home-bred specimens mix with further migrants.

2012 (CHF): The most widely-recorded species in the county with records in every month of the year. Numbers vary from year to year - the migrant autumn of 2006 producing the most records.

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