Kaliwatan sa bakukangon ang Cephennium hlavaci.^[1] Una ning gihulagway ni Stevanović ni adtong 2011.^[2] Ang Cephennium hlavaci sakop sa kahenera nga Cephennium, ug kabanay nga Staphylinidae.^[1][3]

Kini nga matang hayop na sabwag sa:

• Bulgaria
• Serbya

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: 53304768. Retrieved 2019-11-11. {{cite web}}: |author= has generic name (help)CS1 maint: multiple names: authors list (link)
2. ↑ Stevanović, M. (2011) Study of the genus Cephennium Müller & Kunze, 1822 from the Balkan Peninsula. Part I. (Coleoptera: Staphylinidae: Scydmaeninae). , Genus, 22 (4): 551-564.
3. ↑ Newton A.F. (2019). StaphBase: Staphyliniformia world catalog database (version Nov 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.