Identification
A quick glance at the tip of the abdomen should separate it from other white moths.
Life cycle
One generation. Overwinters as a small larva during August to June. Pupation is low down on the foodplant in a cocoon.
Larval foodplants
Hawthorns, Blackthorn, birches, Hazel, oaks, sallows and elms.
Habitat
Gardens, hedgerows and woodland.
History 1860-2010
The first for Scotland was of a record at Rockcliffe (VC73) in 1870 by Francis Buchanan-White of Perth. The only other known Scottish occurrences were from Aberdeen,1872, South Ayrshire, 1900, Southwick and Mainsriddle (VC73) in June and July, 1946, while in August 1947, David Cunningham saw good numbers of the Yellow-tail flying at dusk on the Isle of Whithorn, Wigtownshire.
The first for Dumfriesshire came in 1951 when one was trapped in late July at Closeburn. Further VC72 records were from Castlehill, Dumfries and Lockerbie (Sir Arthur Duncan – BRC data).
During 1974-78 it was trapped regularly at Gatehouse of Fleet and Caerlaverock Rothamsted stations.
From 1993 to 2010, Old Torr/Auchencairn area (VC73), Caerlaverock (VC72) and Claymoddie (VC74) produced a number of records, with other widespread sites also adding to our knowledge.