Nigel Cattlin / Horse chestnut leaf miner (Cameraria ohridella) larval damage to Horse chestnut (Aesculus hippocastanum) leaves. Berkshire, England, UK. August.

Adrian Davies / Horse chestnut Leaf Miner Moth (Cameraria ohridella) Larva extracted from leaf. Surrey, UK. Approx 5mm long

Adrian Davies / Horse Chestnut Leaf Miner Moth (Cameraria ohridella) larva in leaf (centre of frame) Surrey, UK July

Alex Hyde / Horse Chestnut leaves (Aesculus hippocastanum) infected with Leaf Miner Moth (Cameraria ohridella) on a white background. Peak District National Park, Derbyshire, UK. July. This insect is an invasive...

Adrian Davies / Horse chestnut tree (Aesculus hippocastanum) showing discolouration on leaves from infestation by Leaf miner moth (Cameraria ohridella), Surrey, UK. August.

Nigel Cattlin / Exposed Horse chestnut leaf-miner (Cameraria ohridella) larva in mine in tree leaf (Aesculus hippocastanum) Berkshire, England, UK, September.

Nigel Cattlin / Exposed horse chestnut leaf-miner (Cameraria ohridella) larva in mine in a tree leaf (Aesculus hippocastanum) Berkshire, England, UK, September.

Nigel Cattlin / Larva of horse chestnut leaf-miner (Cameraria ohridella) in a leaf mine in a conker leaf (Aesculus hippocastanum) leaf, Berkshire, England, UK, September.

Nigel Cattlin / Damage to horse chestnut (Aesculus hippocastanum) leaf caused by leaf-miner (Cameraria ohridella) larvae, Berkshire, September