Manchester Treble-bar

  • Manchester Treble-bar
    Manchester Treble-bar

Scientific name: Carsia sororiata

July to September. This small moth is grey with a red flush towards the forewing edge. Often found near bilberry, cowberry and cranberry on damp moorland, heathland and mosses.

Similar to the Treble-bar and Lesser Treble-bar, but smaller in size with a larger red flush on the forewings. Flies readily when disturbed from vegetation on warm days. Also flies from dusk.

Size and Family

  • Family – Carpets and Allies (Larentiines)
  • Small Sized 
  • Wingspan Range - 22-30mm

Conservation status

  • UK BAP: Not listed
  • Scarce (Nationally Scarce B)

Caterpillar Food Plants

Bilberry (Vaccinium myrtillus), Cowberry (Vaccinium vitis-idaea) and Cranberry (Vaccinium oxycoccos).


Occurs in the open and wettest parts of damp moorland, heathland and raised mosses.


  • Countries – England, Wales, Scotland, Ireland
  • Widespread and common in parts of central and northern Scotland, including the Hebrides, Orkney and Shetland, and also Northumberland.  More restricted in southern Scotland near the Borders, in Co. Durham and from Cumbria to Shropshire.  Restricted to central Ireland and only known from one site in Northern Ireland.

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