Superfamilies Cephoidea, Megalodontoidea, Orussoidea, Siricoidea, Tenthredinoidea and Xyeloidea.
fully-winged
abdomen not separated from the thorax by a narrowed section (i.e. without a waist)
front wings with several areas enclosed on all sides by veins (closed cells)
size 3-40 mm.
Superfamilies Ceraphronoidea, Chalcidoidea, Cynipoidea, Evaniodea, Ichneumonoidea, Platygastroidea, Proctotrupoidea, Stephanoidea and Trigonalyoidea.
Superfamilies Apoidea, Chrysidoidea, Formicoidea, Pompiloidea, Scolioidea and Vespoidea