Universal Chalcidoidea Database
Described as "gem-like inhabitants of the woodlands by most never seen nor dreamt of", chalcidoids include some of the most beautiful insects on the planet, but are amongst some of the most poorly known. They exhibit amazingly diverse life histories and profoundly influence all types of ecosytems, from rainforests to agriculture. Many species are natural enemies of insect pests and are used instead of pesticides to control them. As many as half a million species may exist, but only about 22,000 are documented, largely because chalcidoids are small to minute in size.The group includes the world's smallest adult insect, the degenerate male of Dicopomorpha echmepterygis, which is only a staggering 0.13mm long.
Noyes, J.S.
https://www.nhm.ac.uk/our-science/data/chalcidoids/database/
GSD
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