*33. Pilemostoma fastuosum (Schaller, 1783)
Local references: Bercio & Folwaczny 1979 (reported on the territory of the former East Prussia from present-day territory of Poland (Heubude, i.e. Gdańsk part); Alekseev & Bukejs 2014 (as expected species for Kaliningraf region).
Material: 1 km SW Cherniakhovsk, 54.60°N, 21.86°E, 31.05.2021, 1 ex., shore of a pond, forest edge (Fig. 11) .
Comments: This is the first report of the species from the territory of Kaliningrad region. The species occurs in Kaliningrad region at northern periphery of main distributional area.