Author: Kullander & Britz, 2002
Comments: Collected from a small, fast flowing stream, about 3 m wide on the average, relatively shallow, less than 0,5 m deep, with occasional riffles; water clear and colorless; the bottom with rock, gravel or sand.  This stream ran between forested hills, with grass and shrub close to the margin, providing up to about 75% shadow, but no water vegetation (Ref. 46238).