Insecta - Hymenoptera - Ephialtitidae

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

Belongs to Proapocritus according to A. P. Rasnitsyn and H. Zhang 2010

Sister taxa: Proapocritus atropus, Proapocritus densipediculus, Proapocritus formosus, Proapocritus longantennatus, Proapocritus praecursor, Proapocritus sculptus

Type specimen: NND0947,8/NIGP 151942ab, 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.

Ecology:

Average measurements (in mm): body 11.7 x 2.8, forewing 7.80 x 1.90, hindwing 5.10 x 1.20