Acleris emargana

Wingspan 18 to 22 mm. The notched and hooked forewings of this species create a very distinctive outline, but the depth of the emargination varies, and can even be absent. Acleris emargana has recently been split from Acleris effractana and national guidelines now call for all records for these two species to be confirmed by gen det.  Where this has not taken place the records should be submitted as Acleris emargana - effractana agg.

Acleris effractana

Acleris emargana has recently been split from Acleris effractana and national guidelines now call for all records for these two species to be confirmed by gen det.  Where this has not taken place the records should be submitted as Acleris emargana - effractana agg.

Around the larval foodplants.

Flying from July to September.

The larvae feed on the leaves and shoots of trees such as Willow, Poplar and Birch.

The species is commonest in the south of Britain, becoming less common further north. In the Butterfly Conservation’s Microlepidoptera Report 2011 this species was classified as common.

Acleris emargana is fairly frequent, though not really common, in Leicestershire and Rutland. There are no VC55 records at present for the similar Acleris effractana.