Of Hrvatsko Zagorje, Croatia
Nat. Croat. Vol. 26(2), 2017 167 NAT. CROAT. VOL. 26 No 2 167-196 ZAGREB DECEMBER 31, 2017 original scientific paper / izvorni znanstveni rad DOI 10.20302/NC.2017.26.15 CONTRIBUTION TO THE KNOWLEDGE OF THE BUTTERFLY FAUNA (LEPIDOPTERA: PAPILIONOIDEA) OF HRVATSKO ZAGORJE, CROATIA Toni Koren1, Boris Lauš1, Martina Šašić2, Iva Mihoci2, Ana Štih1, Petra Bralić3 & Stanislav Gomboc4 1Association Hyla, Lipovac I no. 7, HR-10000 Zagreb, Croatia 2Croatian Natural History Museum, Demetrova 1, HR-10000 Zagreb, Croatia 3Public Institution for the Management of Protected Areas in the Krapina-Zagorje County, Radoboj 8, HR-49232 Radoboj, Croatia 4EGEA, Institution for Nature, Tacenska cesta 135A, SI-1133 Ljubljana, Slovenia Koren, T., Lauš, B., Šašić, M., Mihoci, I., Štih, A., Bralić, P. & Gomboc, S.: Contribution to the knowledge of the butterfly fauna (Lepidoptera: Papilionoidea) of Hrvatsko zagorje, Croatia. Nat. Croat., Vol. 26, No. 2., 167-196, Zagreb, 2017. During a nine-year survey of the Hrvatsko zagorje region carried out from 2008 until 2016 we recorded 112 butterfly species. Records were supplemented with seven species known only from literature data, which amounted to 119 species representing 60 % of the Croatian butterfly fauna. The highest butterfly diversity was registered on the mountains Ivanščica and Strahinjščica and along the Sutla River valley. Several rare and endangered species were recorded in the region, mostly grassland specialists such as Phengaris teleius, Ph. alcon rebeli, Polyommatus thersites, Euphydryas aurinia and Zerynthia polyxena whose habitats are declining due to changes in the use of grasslands like abandonment or, less frequently, intensification. The population of Lycaena dispar is still locally numerous, but its habitats are now rapidly overgrown with invasive alien plants.
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