Full reference: M. S. Engel. 2008. The wasp family Rhopalosomatidae in mid-Cretaceous amber from Myanmar (Hymenoptera: Vespoidea). Journal of the Kansas Entomological Society 81(3):168-174
Sister taxa: none
Type specimen: AMNH Bu-222, an exoskeleton. Its type locality is Kachin, Ta Nai Village, which is in a Cenomanian terrestrial amber in Myanmar.