In Barred Sallow the wide central cross-band is narrower at the trailing edge of
the forewing. Usually this cross-band is yellow but sometimes it is orange or red.
A number of Noctuids are named ‘Sallows’. This may be because sallow (or willow)
is one of the foodplants of the Sallow moth -Cirrhia icteritia. The others are probably
named because they have similar colouring to the Sallow - with pink or purple markings
on a yellow or orange background.
Four of these species do look rather similar :- Sallow, Pink-barred Sallow and Centre-barred
Sallow, Barred Sallow
There is a lot of variation within a species, particularly in the boldness of the
markings.