Gnathotrichus materiarius (Fitch, 1858)
on Pinus, etc.
Pinus sylvestris, transverse section of stem with galleries and discolouration (© G. Rogowski, uit Mazur ea).
parasite
Ambrosia beetle, makes long galleries in the wood of weakened or downed trees; monogamous species.
host plants
Pinaceae, oligophagous
Abies; Larix; Picea abies; Pinus echinata, ponderosa, strobus, sylvestris; Pseudotsuga; Tsuga.
distribution within Europe
notes
Originally a North American species; the first European observation was in 1933 in France.
references
Bussler & Immler (2007a), Holzschuh (1995a), Kamp (1979a), López, Iturrondobeitia & Goldarazena (2007a), López Romero, Romón Ochoa, Iturrondobeitia Bilbao & Goldaracena Lafuente (2007a), Mazur, Witkowski, Góral & Rogowski (2018a), Moucheron & Warzee (2006a), Sanchez, Chittaro, Germann & Knížek (2020a), Valkama, Martikainen & Raty (1998a), Witkowski, Góral, Nowik, ao (2016a).