Kaliwatan sa bakukangon ang Phytoscaphus vagenotatus.^[1] Una ning gihulagway ni Pajni ni adtong 1990.^[2] Ang Phytoscaphus vagenotatus sakop sa kahenera nga Phytoscaphus, ug kabanay nga Curculionidae.^[1][3] Walay nalista nga matang nga sama niini.^[1]

1. ↑ ^{1.0 1.1 1.2} Roskov Y., Kunze T., Orrell T., Abucay L., Paglinawan L., Culham A., Bailly N., Kirk P., Bourgoin T., Baillargeon G., Decock W., De Wever A., Didžiulis V. (ed) (2019). "Species 2000 & ITIS Catalogue of Life: 2019 Annual Checklist". Species 2000: Naturalis, Leiden, the Netherlands. ISSN 2405-884X. TaxonID: 54179908. Retrieved 2019-11-11. {{cite web}}: |author= has generic name (help)CS1 maint: multiple names: authors list (link)
2. ↑ Pajni H.R. (1990) Fauna of India and adjacent country. Coleoptera Curculionidae subfamily Eremninae tribe Cyphicerini , Zoological survey India. Calcutta, 568 pp.
3. ↑ Yunakov N. (2019). 3i Curculio: 3i taxonomic databases, Curculionidae, subfamily Entiminae (version Jan 2019). In: Species 2000 & ITIS Catalogue of Life, 2019 Annual Checklist (Roskov Y., Ower G., Orrell T., Nicolson D., Bailly N., Kirk P.M., Bourgoin T., DeWalt R.E., Decock W., Nieukerken E. van, Zarucchi J., Penev L., eds.). Digital resource at www.catalogueoflife.org/annual-checklist/2019. Species 2000: Naturalis, Leiden, the Netherlands. ISSN 2405-884X.