Incurvaria pirinella male genitalia unrolled: a. vinculum, transtilla and valvae; a1. apex of valva; a2. margin of sacculus; a3. medial knob of transtilla; a4. anterior submedial projection of transtilla; a5. strongly sclerotised lateral arm of transtilla; a6. strongly concave lateral margin of vinculum. b. Unrolled tegumen and uncus; b1. tegumen; b2. uncus; b3. socii. c. Juxta. d. Phallus from semilateral and lateral view; d1. hook-shaped distal projection of phallus; d2. sclerotised plate in vesica. Scale bar: 1 line = 0.05 mm.