22. Mycetophagus (s. str.) ater (Reitter, 1879)
Local references: Alekseev and Bukejs [2017, 2019].
Material: Kaliningrad, 54.72°N, 20.53°E, 04.06.2021, 1 ex., old dead standing Quercus robur in park infested with bracket fungi (Fig. 8) .
Comments: This species is sporadically distributed and poorly known in Kaliningrad region, with few recent records.