1964 Charissa obscurata (Annulet)

Geometridae, Ennominae Wingspan: 30-36mm.

A locally distributed species throughout the UK usually found in coastal areas. It is only occasionally recorded in Cornwall, and generally towards the west of the county. A quite variable species, which is said to match the colouration of soil and rocks in its habitat. The Cornwall specimens are generally quite dark, often obscuring the wing markings, but the aid to identification is the prominent indentations around the wing edges.

The flight season in the UK is shown as July / August, although in Cornwall individuals have been seen in June and September as well.