Agrenia pilosa Fjellberg, 1986

This species was described from Japan and no further records are known. It differs from other members of the A. bidenticulata group in the increased number of anterior setae on the ventral tube (more than 30 on each side in large specimens) and a dense field of setae ("moustache") along the anterior frontoclypeal edge. The original sample came from snow on Mt. Syari-dake, elevation 600 m, Hokkaido.