17.01. Gnathotrichus materiarius (Fitch, 1858)
Presence
E: AU BE CZ FI FR GE IT NL PL SL* SP SV SZ
NAR
Older catalogs and keys – citations of name
Grüne 1979: Gnathotrichus materiarius (Fitch, 1859); Freude, Harde, Lohse 1981: Gnathotrichus materiarius Fitch; Pfeffer 1995: Gnathotrichus materiarius (Fitch, 1858); Geister 2004: Gnathotrichus materiarius.
Figure 67: Gnathotrichus materiarius, distribution map according to historical and recent data
Ecology and presence in Slovenia
The species is distributed in Europe and the Nearctic and native to the Americas. It was first recorded in Slovenia in 2003 (Brdo pri Kranju), but in the following years G. materiarius was found to be common in coniferous forests of northern and central Slovenia and in the Slovene part of Istria. All records in Slovenia are the result of beetles caught in traps, and the species has not yet been found on a host plant (Figure 67). According to literature, the hosts include Pinus sylvestris, Picea abies, Larix kaempferi and Pseudotsuga menziesii. Monogamous species, swarming from April to July. Adult length is 3.2-3.5 mm. The long neck shield has a triangular-shaped depression about halfway down.