Kaliwatan sa insekto ang Tachyagetes grandis.^[1] Una ning gihulagway ni Tournier ni adtong 1889. Ang Tachyagetes grandis sakop sa kahenera nga Tachyagetes, ug kabanay nga Pompilidae.^[1][2]

Kini nga matang hayop na sabwag sa:

• Khasakstan
• Kirgistan
• Turkmenistan
• Osbekistan
• Rusya
• Mongolia

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: 37507174. Retrieved 2019-11-11. {{cite web}}: |author= has generic name (help)CS1 maint: multiple names: authors list (link)
2. ↑ 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.