Bolitophagus reticulatus

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.