Insecta - Hymenoptera - Ephialtitidae

Full reference: A. P. Rasnitsyn. 1975. Hymenoptera Apocrita of Mesozoic. Transactions of the Palaeontological Institute Academy of Sciences of the USSR 147:1-134

Belongs to Symphytopterus according to A. P. Rasnitsyn 1975

Sister taxa: Symphytopterus ater, Symphytopterus clavicornis, Symphytopterus dubius, Symphytopterus geniculatus, Symphytopterus macrophthalmus, Symphytopterus minutus, Symphytopterus nigricornis, Symphytopterus nigridorsatus, Symphytopterus nigripes, Symphytopterus obliquus, Symphytopterus oculatus, Symphytopterus pallipes, Symphytopterus robustus

Type specimen: PIN 2997/4137, an exoskeleton (male?). Its type locality is Karatau-Mikhailovka (PIN collection 2997), which is in a Callovian/Oxfordian lacustrine - large siltstone in the Karabastau Formation of Kazakstan.

Ecology:

Average measurements (in mm): body length 7.50, forewing length 5.00