24.04. Dryocoetes villosus (Fabricius, 1792)
Presence
E: AU BE BU BY CR CZ DE EN FR GB GE GR IR IT (Sardegne, Sicilia) LA LT MC NR PL PT SK SL SP ST SV SZ UK YU
N: AG MR TU
A: TR
Figure 102: Dryocoetes villosus, dorsal, lateral (Photo: Maja Jurc)
Older catalogs and keys – citations of name
Siegel, 1866: Bostrychus villosus Fab.; Grüne 1979: Dryocoetes villosus (Fabricius, 1792); Freude, Harde, Lohse 1981: Dryocoetes villosus Fabricius; Pfeffer & Knížek 1993: D. villosus (Fabricius, 1792); Pfeffer 1995: Dryocoetes villosus villosus (Fabricius, 1792).
Figure 103: Dryocoetes villosus, distribution map according to historical and recent data
Ecology and presence in Slovenia
The species is found in Europe, the Crimea, the Caucasus, North Africa and Turkey. Siegel (1866) states that the species was “rare in Carniola, in the bark of spruce trees”. Many recent records in central Slovenia are the result of trapping (Figure 103). Hosts include Quercus petraea, Q. robur, Quercus spp., less frequently also Fagus sylvatica, Castanea sativa, Prunus spp. and Carpinus spp.). In Slovenia, Q. petraea and Q. robur are recorded as hosts, and in 2018 an infestation of the trunks of Picea abies and Abies alba was also recorded at Ljubljanski Vrh. The species develops 1-2 generations per year. The tunnel system is transversely oriented, irregular in shape. Adult length is 2.5-3.5 mm (Figure 102).