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
Type specimen: NND0413/NIGP 151941ab, an exoskeleton (nearly complete female wasp). 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 13.6 x 2.6, forewing 7.20 x 2.70, hindwing 5.40 x 1.50