Phalera bucephala

Or buff-tip—
           a heavy-bodied moth
with grey forewings
           and a prominent buffpatch
at the apex : its hindwings
           are creamy white
but its thoracic hair
           is buff too

A night errant
            it rides the June or July skies
and is pulled but not driven
           to the light
At rest it resembles
           a broken twig :
the deadly laburnam
           is its favoured foodplant

John Lyons