Family: Tineidae Sub-family: Teichobiinae
200 * Psychoides filicivoraDiscovered in Ireland in 1909, mainly coastal but spreading inland
Flight time: Day-flying April-October
Possibly introduced with imported ferns. Often found indoors.
Mine: Throughout the year
Larval food plant: Feeds on the underside of fern fronds;
Soft shield-fern Polystichum setiferum, Male-fern Dryopteris filix-mas, Hart's tongue Phyllitis scolopendrium, Black spleenwort Asplenium adiantum-nigrum, Maidenhair spleenwort A.trichomanes
Feeding signs on Scaly Male-fern, Dryopteris affinis and Harts-tongue, Phyllitis scolopendrium.
Ballingeary, Co. Cork, SW Ireland. October 2010. Adult: Bantry, Co. Cork. September 2011