The author reports 24 localities of Antrodiella onychoides (Egel.) Niemelä in Czechoslovakia. He supposes that this species is overlooked as it is macroscopically very similar to Antrodiella semisupina (Berk. et Curt.) Ryv. et Johansen, and will soon be found at further localities in Czechoslovakia.
Vampola P. (1991): Antrodiella onychoides - a new polypore of Czechoslovak mycoflora. – Česká Mykologie 45(3): 81–84.