The species Tinodes antonioi, a new species in the fauna of Croatia, was determined in northern Istria. The paper provides information about T. antonioi in Croatia (DNA barcode data, period of the finds, localities of the finds, numbers of males and females collected) as well as the biodiversity and distribution of the Tinodes genus in Croatia. A reference is made to the species endemic in Croatia, Tinodes andrasi, established to date at only one site in the south of Croatia (Konavle, Dalmacija). Vrsta Tinodes antonioi, kao nova u fauni Hrvatske, zabilježena je po prvi puta u sjevernoj Istri. U radu se daju informacije o T. antonioi u Hrvatskoj (DNA barkod podaci, periodi nalaza, lokaliteti nalaza, broj prikupljenih mužjaka i ženki), kao i bioraznolikost i rasprostranjenost roda Tinodes u Hrvatskoj. Daje se osvrt i na endem Hrvatske, Tinodes andrasi, zabilježen samo na jednom lokalitetu u Hrvatskoj (Konavle, Dalmacija).
In this study we present: two species of caddisflies new for Croatian fauna from the family Hydroptilidae (Hydroptila simulans Mosley, Orthotrichia costalis Curtis), first DNA barcoding of caddisfly species in the Krka National Park and a discussion about recorded caddisfly fauna in the Krka NP from this study. From a faunistic point of view several species are interesting: Hydropsysche mostarensis Klapálek, Hydroptila simulans Mosely, Hydroptila forfcipata Eaton, Orthotrichia costalis Curtis and Tinodes pallidulus McLachlan. For the species Oecetis notata Rambur we have recorded interesting taxonomical remarks. Furthermore, within this study we used DNA barcoding which showed to be a very good and useful method for identification of very small and morphologically similar species from the family Hydroptilidae, or females from the family Psychomyiidae. Nove vrste za Hrvatsku iz porodice Hydroptilidae, prikupljene u NP Krka, s posebnim osvrtom na bioraznolikost i DNA barkodiranje. Nat. Croat., Vol. 28, No. 2., 441-454, Zagreb, 2019. U ovome radu prikazujemo: dvije nove vrste zabilježene u fauni Hrvatske iz porodice Hydroptilidae (Hydroptila simulans Mosley, Orthotrichia costalis Curtis), prikaz DNA barkodiranja tulara u Nacionalnom parka Krka te osvrt na faunistički najzanimljivije vrste utvrđene tijekom ovih istraživanja. Faunistički najzanimljiviji su nalazi sljedećih vrsta: Hydropsysche mostarensis Klapálek, Hydroptila simulans Mosely, Hdroptila forfcipata Eaton, Orthotrichia costalis Curtis i Tinodes pallidulus McLachlan. Vrsta Oecetis notata Rambur nazanimljivija je s taksonomskog aspekta. U ovim istraživanjima metoda DNA barkodiranja pokazala se kao vrlo korisna u determinaciji vrlo malih i morfološki sličnih vrsta iz porodice Hydroptilidae te ženki iz porodice Psychomyiidae.
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