Full reference: A. P. Rasnitsyn and H. Zhang. 2010. Early evolution of Apocrita (Insecta, Hymenoptera) as indicated by new findings in the Middle Jurassic of Daohugou, Northeast China. Acta Geologica Sinica 84(4):834-873
Sister taxa: none
Type specimen: NND0223,0257/NIGP 151945ab, an exoskeleton (male wasp no antennae, incomplete wings & legs). Its type locality is Daohugou (NIGP collection), which is in a Callovian/Oxfordian lacustrine - large shale in the Daohugou Formation of China.
Average measurements (in mm): body 13.3 x 3.1, forewing 8.70 x 3.10, hindwing 6.30 x 1.80