Flies rapidly in the sunshine, but in dull weather can be found at rest on rocks, posts etc.

Overwinters as a pupa. The larva feeds at night from late May to mid-July on the young shoots and leaves of the foodplant

Size and Family

  • Family – Brocades, Quakers and allies (Hadenines)
  • Small Sized 
  • Wing Span Range (male to female) - 24-28mm

Conservation status

  • UK BAP: Priority Species
  • Nationally Scarce

Caterpillar Food Plants

Caterpillars feed on Bearberry (Arctostaphyllos uva-ursi)


Bearberry-rich moorland, mainly at altitudes of between 200-650m.


  • Countries – Scotland
  • Central Highlands of Scotland, recorded from Inverness-shire, Perthshire, Aberdeenshire, Angus, Morayshire and Banffshire
  • Distribution Trend Since 1970s = Britain: Declining
Small Dark Yellow Underwing by Stuart Read

Small Dark Yellow Underwing