;Megalochus;Stethantyx Antenna;"shortened; flagellomeres strongly transverse";"not shortened; flagellomeres weakly transverse to elongate" "Propodeum and metapleuron";"with coarse irregular rugae";"without rugae" "Sub-basal cell in hind wing";"unusually long and narrow";"not especially narrow" "First metasomal segment";"round in cross-section, very slender, about 6.6 times as long as posteriorly broad";"trapeziform centrally in cross-section, 3.3–5.0 times as long as posteriorly broad" Glymma;lacking;present