Longitude (deg): -2.4. Latitude (deg): 54.0. Longitude (deg/min): 2° 30' W. Latitude (deg/min): 54° 0' N. Vice county name: Mid-west Yorkshire. Vice county no.: 64. Country: England. Stage: Male imago. Identified by: Malcolm Storey. Comment: Male apter, on stream. Category: standard photograph or close-up. Real world width(mm): 0. Photographic equipment used: 35mm transparencies (on a variety of films, but Agfa CT18 in the 1960's to early 1980's followed by Fujichrome in the late 1980's.) Transparencies scanned with Minolta Dimage Scan Dual II AF-2820U transparency scanner..