Tenellia cuanensis (Korshunova et al, 2019)

9 July, 2014.
Lephinchapel, Loch Fyne on the west coast. 
30 mm animal at 10 m. Water temperature 12°C.
Sony ?6000  in Nauticam housing, 30 mm lens and 2 x Inon D-2000 flashes.