This key covers all Rhyssinae species listed as occurring in northern Europe (2024). Two members of Pimplinae, Pseudorhyssa alpestris and P. nigricornis, are also included due to them sharing the transverse striae on the mesoscutum that is otherwise unique to Rhyssinae.
References
A. Varga (2014). "A REVIEW OF THE SUBFAMILY RHYSSINAE (HYMENOPTERA, ICHNEUMONIDAE) FROM THE UKRAINIAN CARPATHIANS". Vestnik zoologii, 48(1): 27–34