This is a medium-sized pale grey moth with distinctive long black markings. It is a recent colonist, being first recorded in Britain in 1951 on the Isle of Wight and since then it has quickly spread north, as far as southern Scotland. It is common in areas where Cypress trees are present and benefits from the planting of Cypress trees in parks and gardens.

It overwinters as an egg, laid on Cypress leaves. The larvae occur from March to July and then they pupate underground.

Size and Family

  • Family – Sharks, shoulder-knots, chestnuts, sallows and allies (Cuculliinae)

  • Medium sized

  • Wingspan Range – 39-44mm

Conservation Status

  • UK BAP: Not listed
  • Common

Caterpillar Food Plants

The larvae feed on the flowers and young leaves of various species of Cypress (Cupressa spp)

Habitat

They are found in conifer plantations, and suburban habitats such as parks and gardens where there are Cypress trees.

Distribution

  • Countries – England, Wales, Scotland, Ireland
  • Its distribution has rapidly increased and it is now fairly common, and abundant in some areas.
Blair’s Shoulder-knot - Garry Barlow

Blair’s Shoulder-knot

Blair’s Shoulder-knot - Garry Barlow

Blair’s Shoulder-knot

Blair’s Shoulder-knot - nutmeg66

Blair’s Shoulder-knot

Blair’s Shoulder-knot - Ben Sale

Blair’s Shoulder-knot

Blair’s Shoulder-knot - Patrick Clement

Blair’s Shoulder-knot

Blair’s Shoulder-knot - Lez Round

Blair’s Shoulder-knot

Blair’s Shoulder-knot - Ben Sale

Blair’s Shoulder-knot

Blair’s Shoulder-knot (caterpillar) - creaturesnapper

Blair’s Shoulder-knot (caterpillar)