|scientific name Apatania alberta |
Small turbulent streams to large smooth flowing streams.
Adults fly from early May to late June.
Adult antennae are dark brown to black and the vertex of the head black. Spur formula is 1, 2, 4 and brown. In males, the cercus is slender and deeply bifurcate. The dorsal lobe is longer and thicker than the ventral lobe. The clasper is long, slender and relatively uniform in width (Nimmo, 1971).
Larvae graze for algae and diatoms from rocks.
This species is only known from the Banff area in Alberta and Vancouver Island British Columbia (Nimmo, 1971).
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