Longitude (deg): -1.2. Latitude (deg): 51.4. Longitude (deg/min): 1° 10' W. Latitude (deg/min): 51° 20' N. Vice county name: Berks. Vice county no.: 22. Country: England. Stage: Larva. Associated species: Betula pendula. Identified by: Malcolm Storey. Comment: Large blotch mines on Birch. Category: macro-photograph. Image scaling: enlarged. Real world width(mm): 30.2683333333333. Photographic equipment used: Specimen directly scanned on HP Scanjet 5470c flatbed scanner. For some photographs of some specimens (eg leaf mines) the transparency adaptor was used..