1961 Campaea margaritata (Light Emerald)

Geometridae, Ennominae Wingspan: 36-52mm.

A common species throughout the UK, and widespread in Cornwall. Not associated with the other species of "Emeralds", it has inevitably been named after those. A large and beautiful species, especially when freshly emerged, but in time can be found almost white due to fading.

The UK flight season is defined as late May to early August with occasional extensions into September in the south. In Cornwall, like in Scotland, there appears to be a distinct second generation with adults peaking again in September and into October. Late individuals are often much smaller than the main generation. An isolated individual was recorded in March in 2011, possibly due to mild conditions.