Kaliwatan sa insekto ang Pepsis thoreyi.^[1] Una ning gihulagway ni Anders Gustav Dahlbom ni adtong 1845.^[2] Ang Pepsis thoreyi sakop sa kahenera nga Pepsis, ug kabanay nga Pompilidae.^[1][3]

Kini nga matang hayop na sabwag sa:

• Tśile
• Argentina
• Uruguay

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: 37509115. Retrieved 2019-11-11. {{cite web}}: |author= has generic name (help)CS1 maint: multiple names: authors list (link)
2. ↑ Dahlbom, A.G. (1845) Hymenoptera Europaea Praecipue Borealia, formis typicis nonnullis specierum generumve exoticorum propter nexum systematicum associatis, per familias, genera, species et varietates disposita atque descripta. Tomus secundus. Chrysis in sensu Linnaeano , Lundbergiana : 353-528
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.