Reference
Jari Junnilainen, Peter Buchner, Jari-Pekka Kaitila, Marko Mutanen (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: 81 - 100.