https://www.uni-wuerzburg.de/en/news-and-events/news/detail/news/digger-wasps-and-their-chemistry/
Digger wasps and their chemistry -
Astonishing evolution: Because digger wasps switched prey, the chemical protective layer of their skin changed, too.
digger waspschemistry
https://jnhm.uobaghdad.edu.iq/index.php/BINHM/article/view/901/382
View of NEW TAXA OF DIGGER WASPS: TRIBE, OXYBELINI (CRABRONIDAE, HYMENOPTERA) FROM IRAQ
new taxadigger wasps