1.b Wing: the black in the front border cell (R1) leaves the tip of the cell hyaline -> Hemipenthes morio
2.a The darkened part of the wing extends around the discal cell backwards; Thoracic dorsum along the sides with yellowish or whitish hairs. 8-11mm. -> Hemipenthes maurus
2.b The darkened part of the wing does not extend beyond the discal cell; thoracic dorsum with yellowish or whitish hairs at the front borders, not at the sides. 5.5-13mm. -> Hemipenthes velutinus
Wing H. maurus
Wing H. velutinus