Chalcidoidea is a superfamily of Hymenoptera In biology, a superfamily is a taxonomic grade intermediate between suborder and family. ... Suborders Apocrita Symphyta Many families, see article Hymenoptera is one of the larger orders of Insects, comprising the sawflies, wasps, bees, and ants. ...
Chalcidoidea includes 19 families of parasitic hymenopterans that range in size from 0.1 mm to 45 mm, often with bright metallic coloration and intricate sculpture.
Chalcidoidea is characterized by highly reduced forewing venation consisting of (at most) a single vein complex subdivided into submarginal, marginal, postmarginal and stigmal veins (Chalcid wing).
This may be due, in part (and partly true), to the perception that Chalcidoidea is a ‘difficult’ group to work on given their small size (usually <2 mm in length), limited and plastic morphological features, and that "specialized" collection/curation techniques are required for proper acquisition and preservation.