66.006 Lasiocampa trifolii (Grass Eggar & Pale Grass Eggar)
ws: 40-55mm (UKMoths), fw: m21-24mm, f25-30mm (Waring & Townsend); Aug-Sep; lfp varies with subspecies and location.
ssp trifolii (Grass Eggar): NS-A sand-dunes on Isles of Scilly, Dorset (marram), Hampshire (tree lupin), Somerset, Glamorgan, Cheshire & Lancashire (creeping willow); sea-cliffs os S.Devon (bramble) and Cornwall; inland heathland in Dorset
ssp flava (Pale Grass Eggar): RDB coastal shingle at Dungeness, Kent (false oat-grass)
ssp trifolii (Grass Eggar): NS-A sand-dunes on Isles of Scilly, Dorset (marram), Hampshire (tree lupin), Somerset, Glamorgan, Cheshire & Lancashire (creeping willow); sea-cliffs os S.Devon (bramble) and Cornwall; inland heathland in Dorset
ssp flava (Pale Grass Eggar): RDB coastal shingle at Dungeness, Kent (false oat-grass)
Lasiocampa trifolii trifolii (Grass Eggar) §2 male
Lasiocampa trifolii flava (Pale Grass Eggar) §1 male
ID: The subspecies differ in ground colour - ssp trifolii ranges from reddish-brown to blackish-brown, ssp flava is straw yellow to brownish-yellow; curved antemedian and postmedian lines delineate a median fascia which is a shade darker than the ground colour and contains a dark-ringed white spot; in ssp trifolii the cross-lines are paler than the ground colour, in ssp flava they are darker than the ground colour. Form obsoleta of ssp flava lacks cross-lines and the dark ring around the central spot.
§1 Dungeness, Kent; 25/07/2017; male; fw 23mm; to light
§2 St Mary's, Isles of Scilly; 22/08/2022; male; to light
L1 Lands End, Cornwall; 07/06/2013
All images © Chris Lewis
§2 St Mary's, Isles of Scilly; 22/08/2022; male; to light
L1 Lands End, Cornwall; 07/06/2013
All images © Chris Lewis
Page published 29/07/2017 (§1 & L1) | §2 added 08/09/2022
