Psychoides verhuella
Psychoides verhuella
12.047 BF199
Wingspan 9-12 mm.
Larva mines mature fern frond with well developed sporangia, usually Phyllitis scolopendrium (Hartstongue fern), and makes case (vacant when larva in frond) resembling displaced sorus (spore body). Aug.-June, most prominent April-May.
Larva (early and late instars) has black head, prothoracic shield and anal plate, which distinguish it from the other fern frond species, P. filicivora.
Pupal case, May-June, has sharp crest when unworn.
Imago, June-July, often has a violet reflection. It lacks the white tornal spot of P. filicivora
Most frequent in Wales and W. England, including Salop,Flints.,Denbighs.,Caerns.
Larva mines mature fern frond with well developed sporangia, usually Phyllitis scolopendrium (Hartstongue fern), and makes case (vacant when larva in frond) resembling displaced sorus (spore body). Aug.-June, most prominent April-May.
Larva (early and late instars) has black head, prothoracic shield and anal plate, which distinguish it from the other fern frond species, P. filicivora.
Pupal case, May-June, has sharp crest when unworn.
Imago, June-July, often has a violet reflection. It lacks the white tornal spot of P. filicivora
Most frequent in Wales and W. England, including Salop,Flints.,Denbighs.,Caerns.
Flight period
| Month | Records |
|---|---|
| January | 1 |
| February | 5 |
| March | 16 |
| April | 22 |
| May | 16 |
| June | 44 |
| July | 8 |
| August | 0 |
| September | 4 |
| October | 6 |
| November | 5 |
| December | 5 |
