Esolus parallelepipedus (Mueller, P.W.J., 1806)
Family: Elmidae
Size: 1.5 mm (1.4 to 1.5 mm)
Distribution: Europe
Ecology: Lives in moutainous aereas on rocks and mosses in streams
Location: England, Teme river
leg. Tomlin, IX.1919; det. P.Harwood
Coll. Oxford University Museum of Natural History
Photo: U.Schmidt, 2015

Esolus parallelepipedus  (Flickr)