Distribution: The distribution area of Apatania fimbriata is restricted to Central Europe.

Habitat: 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).

Nutrition: Larvae are scrapers, feeding on epilithic algae (Szczesny 1986, cited by Waringer & Graf 1997).

Adults: Adults are on the wing from February to October (Waringer & Graf 1997).