Male genitalia from ventral view. 19. Incurvaria pirinella left and I. triglavensis right: a. margin of uncus; b. lateral margin of vinculum. 20. Male genitalia free-floating ventral view. I. pirinella left and I. triglavensis right: a. robust and strongly sclerotised lateral arms of transtilla; b. apex of valva; c. medial part of valva; d. medial knob of transtilla together with it anterior submedial projections; e. lateral margins of vinculum; f. apex of vinculum; mp1a-b. are measurement points length of vinculum. Scale bar: 1 line = 0.05 mm. Second smaller scale bar parallel to transtilla knob: 1 line = 0.01 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