Scarabaeoidea (Insecta: Coleoptera) Of The Kaliningrad Region (Russia): The Commented Actual Checklist, Assessment Of Rarity And Notes To Regional Protection Author Alekseev, Vitalii I. text Acta Biologica Universitatis Daugavpiliensis 2018 2018-12-31 18 2 111 152 journal article 298071 10.5281/zenodo.10979877 13070b4b-afe1-4eae-8c82-2afda9e0bfe5 1407-8953 10979877 4. P. caraboides caraboides (Linnaeus, 1758) Bercio & Folwaczny 1979; Alekseev & Sakhnov 2000; Alekseev 2014. Voucher specimens: 4 [Kolosovka, 04 May 2001 ; railway station “ 1312 km ”, 18 May 2010 ; ibidem, 02 May 2014 (female, var. rufipes (Herbst, 1790)) ; 2 km S Novomoskovskoe, 12 May 2014 ]. Kaliningrad Region : Chern. (Insterburg), Gur. (Königsberg), Gvard. (Wehlau), Nem. (Tilsit), Nest. (Rominten), Zel. (Rauschen, Wargen, Warnicken); Bagr., Zel. Comments: The localities listed in Bercio & Folwaczny (1979) and mentioned above could surely concern both species, because these Platycerus sibling species were earlier not distinguished. According to Nikitsky (2016) P. caraboides develops in stumps and trunks of deciduous trees ( Quercus , Tilia , Populus , Fagus , Carpinus , Betula ), adults occur on young leaves and twigs in Mai and June. Locally distributed and occasional species. Occurs in sparse mixed forests and on forest edges. The species is considered “least concern” at the European level ( Nieto & Alexander 2010 ).