Food Plant: Vaccinium vitis-idaea (Cowberry) , possibly V.myrtillus (Bilkberry)

Egg: laid on the stem or leaves

Mine: July-May

Notes: Initially forms mines (as shown) in the leaf with plentiful dispersed frass. It then leaves the mine and feeds on spun leaves by eating the upper epidermis and parenchyma. Local and found on hills and mountainsides from Derbyshire to Scotland. Found also above 600m in North Wales.

National Status: Nationally Scarce A

Bradley No: 1158

Data: 08.v.2016, Norland Moor, Calderdale, W.Yorkshire, VC63

Image:© Charlie Streets