Trogidae MacLeay, 1819

Alekseev, Vitalii I., 2018, Scarabaeoidea (Insecta: Coleoptera) Of The Kaliningrad Region (Russia): The Commented Actual Checklist, Assessment Of Rarity And Notes To Regional Protection, Acta Biologica Universitatis Daugavpiliensis 18 (2), pp. 111-152 : 121-122

Family Trogidae MacLeay, 1819 Subfamily Troginae MacLeay, 1819 Genus Trox Fabricius, 1775

(-) T. cadaverinus Illiger, 1802

Alekseev 2002 (misidentification).

Comments: the earlier report of this species from the Kaliningrad Region was based on misidentification. Faunal data on this species in the Region are absent; therefore, it has been removed from the species list. Its occurrence in local fauna is doubtful. The nearest sampling places (Bercio & Folwaczny 1979; Rossa et al. 2017) and the northern distribution range are situated in western and central Poland.

(1). T. hispidus (Pontoppidan, 1763)

Lentz 1879; Bercio & Folwaczny 1979.

Kaliningrad Region: Gur. (Königsberg „vor dem Sackheimer Thore“).

Comments: The beetle is known in Poland ( Rossa et al. 2017), Sweden, Denmark ( Silfverberg 2010) and Lithuania ( Tamutis et al. 2011). The actual presence of the species in the regional fauna needs verification (the single report is from XIX century), but its occurrence is possible.

2. T. sabulosus sabulosus (Linnaeus, 1758)

Bercio & Folwaczny 1979; Alekseev & Sakhnov 2000.

Voucher specimens: 2 [Grushevka, 25 April 1998; Otvazhnoe, 01 May 2002].

Kaliningrad Region: Bagr. (Ludwigsort), Chern. (Insterburg), Gur. (Königsberg), Oz. (Trempen), Zel. (Loppöhnen); Gur., Pravd.

Comments: Rare and locally distributed species restricted to sites with sandy soil and occurred

on dry carrion.

3. T. scaber (Linnaeus, 1767)

Bercio & Folwaczny 1979; Alekseev 2007, 2014; Alekseev & Shapoval 2011b, 2016.

Voucher specimens: 12 [Riabinovka, 17 June 2001; Cherniakhovsk, 4 July 2004; Kaliningrad 15 August 2005; Curonian Spit, 18 July 2005; Chkalovsk 04 April 2009, 2 exx; railway station “ 1312 km ”, 19 May – 08 June 2009; ibidem 08 June – 07 July 2009; Curonian Spit, 23 km, 12 May 2010, 2 exx; Kaliningrad 03 June 2011, 2 exx] .

Kaliningrad Region: Bagr. (Ramsen, Schrombehnen), Chern. (Insterburg), Gur. (Königsberg, Wernsdof), Zel. (Loppöhnen); Bagr., Chern., Gur., Zel.

Comments: Widely distributed, ocassional in the Kaliningrad Region species, inhabiting the forests, suburbs and parks. It is associated with nests of birds in the hollows of tree trunks.