Divelec, R.L. (2022)

A taxonomic review of the Tracheliodes quinquenotatus (Jurine, 1807) species complex and some new records of rare European Tracheliodes A. Morawitz, 1866 (Hymenoptera, Crabronidae)

. Zootaxa, 5099 (2), 244–260.
https://doi.org/10.11646/zootaxa.5099.2.5