The Moths of Suffolk
1458 Myelois circumvoluta, Thistle Ermine, (Geoffroy, 1785)

National Status : Common

Local Status : Resident (SMP Status 2)

Distribution and abundance : Widespread and common

Habitats : Grassland, fens, scrub, and woodland

Flight Period : Single-brooded; June to July

Larval foodplants : thistles (Cirisum, Carduus, Onopordon), in the stem and heads

Morley's Final Catalogue : Locally quite common on large thistles. Copdock and Belstead at light (Hkg) ; Wherstead and Ipswich in July (Mly), Freston, Bealings; common at Aldeburgh in 1892 (Ctw) and Southwold in 1933-4 (Wlr); Hemley, Leiston, Needham; at light in Beccles 1935. Frequent among thistles at Tuddenham (Sparke), Cavenham (Gd), Thetford (Barrett), Barnham Common in 1932 (D), Barton Mills, Brandon.

Wingspan details : Wingspan 27-33mm


Confusion species : None

Click to view full size image
Ipswich, Suffolk (vi.2003) © Neil Sherman

Flight chart
1 100 79 2

Life history chart
larval diapause larval diapause larval diapause larval diapause larva pupa pupaimago larvaimago larva larva larval diapause larval diapause

Further Photographs

Click to view full size imageClick to view full size image
Bawdsey, Suffolk ( © Matthew Deans
Woolpit, Suffolk (18.vii.2015) © Paul Bryant