Kaliwatan sa insekto ang Pepsis confusa.^[1] Una ning gihulagway ni Fox ni adtong 1897.^[2] Ang Pepsis confusa sakop sa kahenera nga Pepsis, ug kabanay nga Pompilidae.^[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: 37510360. Retrieved 2019-11-11. {{cite web}}: |author= has generic name (help)CS1 maint: multiple names: authors list (link)
2. ↑ Fox, W.J. (1897) Contributions to a knowledge of the Hymenoptera of Brazil, No. 2. - Pompilidae , Proceedings of the Academy of Natural Sciences of Philadelphia 49: 229-283
3. ↑ Kroupa A.S., Lohrmann V., Pulawski W.J. & Schmid-Egger C. (2019). HymIS: Hymenoptera Information System (version Jul 2017). 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.