In this paper I present a review of published and new records of Sericus subaeneus from the Czechia and Slovakia and its first record for Bosnia and Herzegovina. There are also illustrations of the imag, habitat descriptions and links to photo documentation of localities.

In this paper, I present an overview of published and new records of Ampedus elegantulus (Schönherr, 1817) from eastern Bohemia (Hradec Králové and Pardubice regions). There are also photographs of its habitats and links to more extensive photodocumentation of localities.

This study summarizes the results of faunistic surveys and monitoring conducted in the Křivoklátsko Protected Landscape Area and Biosphere Reserve between 2022 and 2024, focusing on the order Coleoptera. This fifth installment provides insights into 80 species and one subspecies newly recorded for this area. Among them, six species are newly recorded for the Czech Republic: Atheta minuscula, Oxypoda tarda, Phloeopora nitidiventris, Zoosetha inconspicua (Staphylinidae), Ropalodontus novorossicus, and R. strandi (Ciidae). Additionally, five species are newly recorded for the Bohemian region: Acrotrichis rosskotheni (Ptiliidae), Atheta debiloides (Staphylinidae), Dorcatoma ambjoerni (Ptinidae), Notoxus appendicinus (Anthicidae), and Silvanus recticollis (Silvanidae). We also provide new data on several species listed in the Red List of Threatened Species of the Czech Republic and other species of special significance, for example, from a faunistic perspective. Newly recorded for Křivoklátsko are also invasive species that have been relatively recently discovered in the Czech Republic, including Carpophilus lugubris and Stelidota geminata (Nitidulidae), Cynaeus angustus (Tenebrionidae), Dactylosternum abdominale (Hydrophilidae), Lamprodila festiva (Buprestidae), and Xylosandrus germanus (Curculionidae)). In connection with the findings of remarkable steppe leaf beetles Chrysolina kuesteri and Cheilotoma musciformis, we evaluate a significant portion of the recent records in the area as a consequence of global warming. We also emphasize the importance of three ecologically valuable sites in Křivoklátsko, such as steppe patches in Lánská obora game park, in the National Nature Reserve Týřov, and in the Natural Monument Stará Ves near Hudlice, which serve as refugia for rare species and stepping stones for internal migration. Among the newly recorded notable species, the rove beetle Scopaeus debilis was also collected. The total number of species recorded in Křivoklátsko to date stands at 3 759, including 59 species known only from records before 1961. Of the total species count, 862 are listed in the Red List of Threatened Species of the Czech Republic – Invertebrates, representing a full 22.9% of all recorded species in the area.

In this paper we present an overview of published and new records of the rarely distributed species Mycetophagus ater (Reitter, 1879) from Bohemia, which I managed to collect during the faunistic mapping of selected species of the family Mycetophagidae in the Czech Republic.