The 183 type specimens of Chalcididae (1), Eucharitidae (3), Eurytomidae (127), Leucospidae (2), Tanaostigmatidae (41), and Torymidae (9) (Hymenoptera: Chalcidoidea) housed in the collections of División Entomología, Museo de La Plata, were examined and listed, providing update information about them. The types belong to 34 species of Chalcidoidea described by Blanchard (1); Boucek (2); Boucek et Watsham (1); Brèthes (1); De Santis (9); De Santis et Diaz (1); De Santis et Fernandes (1); LaSalle (16); Mayr (1); Subba Rao (1).
