Bolitophagus reticulatus (Linnaeus, 1767)

Bolitophagus reticulatus (Linnaeus, 1767)

Gerend et al. 2007: 273, 290; Köhler 2009: 109; 2011a: 130; 2012: 93, 125; 2013: 101.

Material. 1 ex., Abweiler. 3.VII.1990, A. Mousset lgt. ( MNHNL138516 ) ; 1 ex., from Contern to Itzig , 9.IX.1990, G. Ewen lgt. ( MNHNL138517 ) ; 2 exx., Berdorf, Schnellert RFI, 13.II.1997, C. Braunert lgt. ( MNHNL138518– 19 ) ; 1 ex., ditto, 21.III.1997, C. Braunert lgt. ( MNHNL138520 ) ; 1 ex., Junglinster , 29. V.1999, A. Mousset lgt. ( MNHNL138521 ) ; 1 ex., Weyer , 11.IV.2000, A. Mousset lgt. ( MNHNL138522 ) ; 6 exx, Luxembourg City, Bambësch , on Fomes , 4–6. V.2008, F. Vitali lgt. ( CFV) ; 2 exx, ditto, 22.III.2009; 1 ex, Schieren, Biirtrengerbësch , 17. VI.2011, F. Vitali lgt. ( CFV) ; 1 ex, Mersch, Helperknapp , on Fomes , 13. VI.2022, F. Vitali lgt. ( CFV) .

Note. This mycophagous species, associated with Fomes fomentarius (L.) Fr., has been recorded from all adjacent regions ( Godron 1863; Köhler & Klausnitzer 1998; Lillig 1999; Thomaes et al. 2025). Although it was historically unknown in the Netherlands ( Everts 1903, 1922) and once considered as very rare in Lorraine ( Géhin 1846; Fournel & Géhin 1847), known from only a single site in Belgium until recently ( Libbrecht 1988; Troukens 2009), and considered endangered in Saarland ( Lillig 1999), the species appears to be increasing in the region. It is regularly found in humid woodlands in Luxembourg.