Kaliwatan sa insekto ang Petalocnemis apicalis.^[1] Una ning gihulagway ni William Sweetland Dallas ni adtong 1852.^[2] Ang Petalocnemis apicalis sakop sa kahenera nga Petalocnemis, ug kabanay nga Coreidae.^[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: 46719178. Retrieved 2019-11-11. {{cite web}}: |author= has generic name (help)CS1 maint: multiple names: authors list (link)
2. ↑ Stål (1873) Enumeratio Hemipterorum. Bidrag till en förteckning öfver alla hittills kända Hemiptera, jemte systematiska meddelanden. 3. , Konglika Svenska Vetenskaps-Akademiens Handlingar (K. Svens. Vet.-Akad. Hand.) 11(2):1-163
3. ↑ CoreoideaSF Team (2019). SF Coreoidea: Coreoidea Species File (version 5.0, Jun 2018). 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.