Longitude (deg): -1.3. Latitude (deg): 51.3. Longitude (deg/min): 1° 20' W. Latitude (deg/min): 51° 20' N. Vice county name: Berks. Vice county no.: 22. Country: England. Stage: Alate. Associated species: Populus nigra 'Italica'. Identified by: Malcolm Storey. Comment: Spiral galls on petioles of Lombardy Poplar. Category: standard photograph or close-up. Image scaling: enlarged. Real world width(mm): 0. Background: pale background. Photographic equipment used: Canon EOS400D digital SLR with Tamron SP AF Di 90mm Macro 1:1 lens.