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First records of the alpine stonefly species Protonemura julia Nicolai, 1983 (Insecta, Plecoptera) in Croatia

The known geographical distribution of the stonefly species Protonemura julia Nicolai, 1983 (Nemouridae, Amphinemurinae) has been considerably extended with new records from Croatia. For the first time, this so-called endemic species of the Italian Julian Alps was found in the mountainous region Gorski kotar (north-western Croatia), at Čabranka River spring area in summer 2006. The first record of the species was reconfirmed on the next field trip in autumn 2006, and it was additionally found at Gerovčica Stream spring area. The new records reported here are the southernmost findings of P. julia, confirming indications that some springs in the Gorski kotar area serve as microrefugia for cold stenothermic species.

Protonemura julia Nicolai; Plecoptera; alpine endemic species; Croatia; Gorski kotar

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