Genus Friona Cameron, 1902

Friona Cameron, 1902a: 61 . Type species: Friona striolata Cameron, 1902 . Monobasic.

Lactolus Cameron, 1902a: 62 . Type species: Lactolus albomaculatus Cameron, 1902 . Designated by Viereck (1914).

In Japan, following a single species has been recorded. I recognize some new distribution records and record these data below.