I check every Swallow Prominent in case one should turn out to be a Lesser SP which I've not recorded here. This species has a long greyish wedge running from the trailing corner about half way to the wing-base; Lesser has a shorter, more distinct white wedge.
Small Square-spot :
Syndemis musculana :
Endrosis sarcitrella :
Trap list (125w MV)
Dark-barred Twin-spot Carpet - 1
Waved Umber - 1
Brimstone Moth - 1
Muslin Moth - 2
Shuttle-shaped dart - 2
Flame Shoulder - 3
Small Square-spot - 1
(15w Actinic)
Endrosis sarcitrella - 2
Syndemis musculana - 1
Garden Carpet - 3
Dark-barred Twin-spot Carpet - 1
Muslin Moth - 2
Swallow Prominent - 1
Shuttle-shaped Dart - 1
Powdered Quaker - 1
The Spectacle - 1
