18. Hylis procerulus (Mannerheim, 1823)

Local references: Bercio & Folwaczny 1979 (as Hypocoelus procerulus Mnnh., reported from Zehlaubruch [the bog Tselau in Gvardeisk district], the authors additionally noted, since the “species” is composed of the complex of four different species, the specimen from the region is named “ procerulus ” without sure morphological identification).

Material: 3 km N Kaliningrad, 54.79°N, 20.44°E, 19.06.2018, 1 ex., clearing in mixed forest .

Comments: The earlier supposed presence of the species is confirmed.