Gnathotrichus materiarius explained

Gnathotrichus materiarius, the American utilizable wood bark beetle, is an ambrosia beetle in the family Curculionidae. It is native to North America, but has been introduced to several European countries.^{[1] [2]} It lives in symbiosis with the fungus Endomycopsis fasciculata, which adult beetles inoculate into the wood of host trees - the fungus then acts as the primary food source of the larvae and adults.^[3]

Further reading

• Book: Catalogue of Palaearctic Coleoptera, Volume 7: Curculionoidea I. 2013. Lobl . I.. Smetana . A.. Apollo Books. 978-90-04-26093-1.
• Book: Catalogue of Palaearctic Coleoptera, Volume 8: Curculionoidea II. 2013. Lobl . I.. Smetana . A.. Apollo Books. 978-90-04-25916-4.

Notes and References

1. Valkama . H . Martikainen . P . Räty . M . First record of North American ambrosia beetle Gnathotrichus materiarius (Fitch)(Coleoptera, Scolytidae) in Finland - a new potential forest pest? . Entomologica Fennica . 8 . 193–195 . 1997 . 4 . 21 June 2018 . 10.33338/ef.83943. free .
2. Witkowski . Radosław . Dyderski . Marcin K. . Bełka . Marta . Mazur . Andrzej . 2022 . Potential European Geographical Distribution of Gnathotrichus materiarius (Fitch, 1858) (Coleoptera: Scolytinae) under Current and Future Climate Conditions . Forests . en . 13 . 7 . 1097 . 10.3390/f13071097 . free.
3. Bantra . LR . Contributions to Our Knowledge of Ambrosia Fungi. II. Endomycopsis fasciculata Nom. Nov. (Ascomycetes) . American Journal of Botany . 50 . 481–487 . 1963 . 5 . 10.1002/j.1537-2197.1963.tb07218.x .