36.01. Xyleborinus attenuatus (Blandford, 1894)
Presence
E: AU CT CZ GE NL NT PL SK SL* SP SV SZ UK
A: FE JA SC TAI
NAR
Older catalogs and keys – citations of name
Pfeffer 1995: Xleborus alni Niijima, 1909.
Figure 170: Xyleborinus attenuatus, distribution map according to historical and recent data
Ecology and presence in Slovenia
A non-native species native to East Asia, it is widespread in Austria, Germany, the Netherlands, Sweden, Poland, the Czech Republic, Slovakia, Ukraine, Russia, Japan, south-eastern China, Taiwan and the Nearctic area. The species was first recorded in Slovenia in 2017 in Ljubljana and the following year in Most na Soči, both times in ethanol traps (Figure 170). According to the literature, the hosts are Salix spp., Alnus glutinosa, A. hirsuta, Quercus robur, Corylus avellana, Betula platyphylla var. japonica, Tilia amurensis and Pinus spp.. The males measure 1.8-2.2 mm in length and the females 2.5-2.9 mm. The anterior part of the neck shield is covered with humps and the posterior part is punctated. The basal part of the neck shield and the beginning of the elytra are covered with protruding hairs. On the elytra apex of the 5th interspace sharp denticles protrude from the apex, the tips of which are directed downwards. X. attenuatus is similar to X. saxesenii, so there is a possibility of confusion.