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| [3-5] Incurvaria pirinella Junnilainen, Kaitila & Mutanen, 2020
[14] Incurvaria circulella (Zetterstedt, 1839)
in Junnilainen, Buchner, Kaitila & Mutanen, 2020.
DOI: 10.3897/nl.42.13026
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Abstract
Incurvaria pirinella Junnilainen, Kaitila & Mutanen, sp. nov. is described from Bulgaria based on specimens collected by netting and artificial light from several low-elevation localities in Bulgaria. The species is morphologically and genetically most similar to I. triglavensis Hauder, 1912. Differences between these two species are present in external appearance and genitalia of both sexes. Additionally, I. pirinella shows a distance of 4.74% to its nearest neighbour I. triglavensis in the standard DNA barcoding marker (COI-5P). We provide preliminary observations of phylogenetic affinities of European Incurvaria and briefly discuss habitat preferences of some species. All species have distinct barcodes with minimum K2P divergences between species averaging 7.05% (range 1.2–12.8%). A world checklist of Incurvaria Haworth, 1828 is provided and DNA barcodes for all European species are here released. Finally, we document morphological variation in male genitalia within I. triglavensis Hauder, 1912.
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| Figures 3–5. Incurvaria pirinella habitus of adult. 3. Male (Holotype). 4. male (Paratype). Ilindenci road. Coll. Kaitila 5. Female (Paratype). Slavianka. Coll. Kaitila. Figure 14. Incurvaria circulella male, Finland KiL. Muonio 7540:8362, 4.vii.2014, Marko, Anttoni & Nestori Mutanen leg., coll. Marko & Tomi Mutanen. |
Incurvaria pirinella Junnilainen, Kaitila & Mutanen, sp. nov.
Etymology: The name of the new species is derived from the Pirin mountain range, where the new species is widely distributed.
Diagnosis:
Considering similar forewing ground colour and markings, Incurvaria pirinella (Figs 3–5) is externally closest to I. circulella (Fig. 14), but is easy to separate from it by the dark grey-brown fringe and distinct white spot in the forewing fringe present in I. circulella. Incurvaria pirinella is also widely allopatric as I. circulella occurs only in northern latitudes in Europe, e.g. the northern part of Sweden and Finland.
Although I. triglavensis is rather variable externally, it is always easy to separate from I. pirinella based on its relatively narrow forewing shape, paler ground colour and differences in forewing markings (Figs 6–11); see details in Suppl. material 2.
Incurvaria pirinella is easy to separate externally from Scandinavian I. vetulella (Figs 12–13) by a white narrow dorsal spot situated 2/5 from base and extending more than halfway across the forewing in I. pirinella. North European I. vetulella also typically have a distinctly broader dorsal spot, sparser forewing scaling and usually a pale medial area in the fringe, which is always absent in I. pirinella.
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Distribution: Known from four different localities in the south-west corner of Bulgaria around the Struma river valley and its adjacent regions, which all belong to the Blagoevgrad district and the Pirin mountain range. The elevational range is wide: 200–1200 m, at least.
Jari Junnilainen, Peter Buchner, Jari-Pekka Kaitila and Marko Mutanen. 2020. 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. DOI: 10.3897/nl.42.13026
