Kaliwatan sa insekto ang Exyston maculosus.^[1] Una ning gihulagway ni Léon Abel Provancher ni adtong 1875.^[2] Ang Exyston maculosus sakop sa kahenera nga Exyston, ug kabanay nga Ichneumonidae.^[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: 6512387. Retrieved 2019-11-11. {{cite web}}: |author= has generic name (help)CS1 maint: multiple names: authors list (link)
2. ↑ Provancher, L. (1875) Les Ichneumonides de Quebec. , Naturaliste Canadien. 7:109-121.
3. ↑ Yu D.S.K. (2019). Taxapad Ichneumonoidea (version May 2009). 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.