Bright, Donald E.; Bouchard, Patrice (2008). Insects and Arachnids of Canada, Part 25: Coleoptera, Curculionidae, Entiminae: Weevils of Canada and Alaska, Volume 2. NRC Research Press, Ottawa, Ontario, Canada.
ISBN978-0660194004.
Lobl, I.; Smetana, A., eds. (2013). Catalogue of Palaearctic Coleoptera, Volume 7: Curculionoidea I. Apollo Books.
ISBN978-90-04-26093-1.
Lobl, I.; Smetana, A., eds. (2013). Catalogue of Palaearctic Coleoptera, Volume 8: Curculionoidea II. Apollo Books.
ISBN978-90-04-25916-4.
Bright, Donald E.; Bouchard, Patrice (2008). Insects and Arachnids of Canada, Part 25: Coleoptera, Curculionidae, Entiminae: Weevils of Canada and Alaska, Volume 2. NRC Research Press, Ottawa, Ontario, Canada.
ISBN978-0660194004.
Lobl, I.; Smetana, A., eds. (2013). Catalogue of Palaearctic Coleoptera, Volume 7: Curculionoidea I. Apollo Books.
ISBN978-90-04-26093-1.
Lobl, I.; Smetana, A., eds. (2013). Catalogue of Palaearctic Coleoptera, Volume 8: Curculionoidea II. Apollo Books.
ISBN978-90-04-25916-4.