Angular rough shark, Oxynotus centrina (Linnaeus, 1758), is a poorly known and rare bathydemersal shark inhabiting continental shelves and upper slopes with a significant lack of data and almost no published records in the Adriatic Sea in this century. In this paper, we present 20 new occurrences recorded from May 2015 to September 2021, of which 19 are in Croatian and 1 in Montenegrin territorial waters. Records of juveniles, subadults and adults are reported. The number of described records and available data on HSI/BMI calculations points out that the living conditions are probably most favoured in the area off the Kornati archipelago (central Adriatic Sea), compared to the habitats in the Southern Adriatic where the populations might have significantly lower density. Due to the non-systematic research and non-probabilistic data collection, it is difficult to establish with certainty whether greater number of records in the continental shelf is just an ostensible phenomenon. This article is protected by copyright. All rights reserved.

In this study we present morphological, molecular and ecological features of the last instar larvae of Drusus bosnicus with data about distribution of this species in Bosnia and Herzegovina. We also included  the most important diagnostic features enabling separation of larvae of D. bosnicus from larvae of the other European Drusinae and Trichoptera species.

1Faculty of Teacher Education, Department in Petrinja, University of Zagreb, Trg Matice hrvatske 12, 44250 Croatia 2Department of Zoology, National Museum, Vaclavske nam. 68, 115 79 Prague 1, Czech Republic 3Croatian Natural History Museum, Demetrova 1, 100000 Zagreb, Croatia 4Department of Ecology, Faculty of Science, Charles University in Prague, Vinicna 7, 128 44 Prague 2, Czech Republic 5Faculty of Science, University of Sarajevo, Zmaja od Bosne 33, 71 000 Sarajevo, Bosnia and Herzegovina 6Department of Biology (Laboratory for Entomology), Faculty of Science, University of Zagreb, Rooseveltov trg 6, 10000 Zagreb, Croatia

From April to September of 2008 and 2009 samples of family Cetoniidae Leach, 1815 were collected on the vertical profile of the southern slopes of Mount Ozren near Sarajevo. Research was conducted at six selected localities: Orlovac, Nahorevo, Cavljak, Skakvac, Bukovik and Crepoljsko. After 41 field investigations, 594 individuals were collected and determined as representatives of seven species. Collected data were processed with statistical software Biodiversity Pro and with options Diversity/Compare diversities: Alpha index; Berger-Parker index; Simpsons index; Margaleff index; Mackintosh index; Bray-Curtis Cluster Analysis: Single Link. By comparison of data it was concluded that Skakavac represents the typical locality for southern slopes of Mount Ozren. The species Oxythyrea funesta (Poda, 1761) is the most numerous faunistic element that was found.