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.

 
 
  Part of: Junnilainen J, Buchner P, Kaitila J-P, Mutanen M (2019) Incurvaria pirinella sp. nov., a new species of the vetulella species-group (Lepidoptera, Incurvariidae) from Bulgaria, with release of DNA barcodes for European species of Incurvaria. Nota Lepidopterologica 42(1): 81-100. https://doi.org/10.3897/nl.42.13026