Common in open woodland and hedgerows, and on downland and calcareous grassland throughout much of southern England and Wales. In Hampshire and on the Isle of Wight like Small Waved Umber H. vitalbata
, depends upon Clematis
, but unlike this species, has declined considerably in recent years, and is seen most frequently on the downs. Wingspan 31-36 mm. Characterised by streak on dorsum at one third, and streak on abdomen, which together form a single streak when the moth is in its natural resting posture, but see the recently discovered close relative Cryptic Fern H. radicaria
which could potentially turn up in our area. Larva feeds on Traveller's-joy and Cultivated Clematis.