The distribution area of Apatania fimbriata is restricted
to Central Europe.
The species inhabits rivulets and trickles near springs and small
rivers (Botosaneanu & Malicky 1978, Pitsch 1993, Robert &
Wichard 1994, Waringer & Graf 1997), and can often be found
in hygropetric sites. It is supposed to prefer waters rich in calcium
carbonate (Dittmar 1955).
Larvae are scrapers, feeding on epilithic algae (Szczesny 1986,
cited by Waringer & Graf 1997).
Adults are on the wing from February to October (Waringer &