24.01. Dryocoetes alni (Georg, 1856)
Presence
E: AU BE BU BY CT CZ DE EN FI FR GB GE GR HU IT LA LS MD NL NR NT PL RO SK SL ST SV SZ UK »Caucasus«
A: ES TR WS
Figure 97: Dryocoetes alni, dorsal, lateral (Photo: Maja Jurc)
Older catalogs and keys – citations of name
Grüne 1979: Dryocoetes alni (Georg, 1856); Freude, Harde, Lohse 1981: Dryocoetes alni Georg; Pfeffer & Knížek 1993: D. alni (Georg, 1856); Pfeffer 1995: D. alni (Georg, 1856).
Figure 98: Dryocoetes alni, distribution map according to historical and recent data
Ecology and presence in Slovenia
The species is distributed in western, central, eastern and southern Europe, the Crimea, the Caucasus, Asia Minor and Japan. In Slovenia, there are few sites in different parts of the country, and no host species have been recorded (Figure 98). Alnus glutinosa, A. incana, A. viridis and A. alnobetula, and more rarely Fagus orientalis and Corylus avellana, are listed as hosts in the literature. It develops 1-2 generations per year, the first swarming in April. Adult length is 2.0-2.3 mm (Figure 97).