Morley's Final Catalogue: Rarely quite abundant, but of most erratic emergence. Bentley, Needham, Stowmarket. Eight bred from larvae on bramble in July 1877 at Flexistow (Ent. Rec. 1899, 367), where were many larvae in 1901 (Wlr); Ipswich singly at light in 1893 and 1897 (Mly), and in 1899 fourteen at light (Platten); bred from Felixstow larvae in 1929 (Wlr); one in Aldeburgh, circa 1900 (D); one at Dunwich in July 1933 (Trans. ii, 291); Bungay at light (Mn). In mid-July 1929 males alone came in great numbers to light inside Gorleston, where occurred a solitary one on 16 July 1931; a brood at Bawdsey in 1935 (Doughty: Trans. i, 24 & iii, 87).
Recent Suffolk status: Common.
Life history: Single-brooded in the summer. A few records in late autumn in recent years.
Identification: Yellow-tail, when disturbed, protrudes its yellow tail above the wings whilst Brown-tail protrudes its brown tail below the wings.
Habitat: Found in a wide variety of habitats including gardens and woodland.
Recorded in 55 (95%) of 58 10k Squares. First Recorded in 1930. Last Recorded in 2023. Additional Stats