Riedel, Alexander. 2011. “The Weevil Genus Trigonopterus Fauvel (Coleoptera, Curculionidae) and Its synonyms—a Taxonomic Study on the Species Tied to Its Genus-Group Names”. Zootaxa 2977 (1). Auckland, New Zealand:1–49. https://doi.org/10.11646/zootaxa.2977.1.1.