Larva of another moth, Psychoides filicivora also feed on ferns. It has a pale-brown head and a pale-brown posterial margin, which has a split in the middle, compared with the black head and prothoracic plate of Psychoides verhuella. Reinhard Gaedike, 2019 Tineidae II : Myrmecozelinae, Perissomasticinae, Tineinae, Hieroxestinae, Teichobiinae and Stathmopolitinae Microlepidoptera of Europe, vol. 9. Leiden : Brill
