The number of valid genera between parentheses; for additional information, e.g. species diversity and distribution, see https://ucd.chalcid.org/#/
Asaphesinae - incertae sedis in Chalcidoidea (5)
Hosts: Homoptera (Aphidae, Coccoidea), Hymenoptera (Aphidiidae), Neuroptera, Siphonaptera
Austrosystasinae - incertae sedis in Chalcidoidea (1)
Hosts: unknown (associated with galls of Eleocarpus)
Ceidae (3)
Hosts: Diptera (Agromyzidae, Drosophilidae)
Cerocephalidae (17)
Hosts: Coleoptera (mainly Scolytidae, Anobiidae), Hymenoptera (Braconidae)
Chalcedectidae (1)
Hosts: Coleoptera (Buprestidae, Cerambycidae)
Cleonymidae (6)
Hosts: Coleoptera (Cerambycidae, Scolytidae), Hymenoptera (Eurytomidae, various Aculeata)
Coelocybidae (17)
Hosts: unknown (associated with galls on trees)
Diparidae (11)
Hosts: Coleoptera (Curculionidae)
Ditropinotellinae - incertae sedis in Chalcidoidea (1)
Hosts: unknown (associated with galls on trees and shrubs)
Enoggerinae - incertae sedis in Chalcidoidea (2)
Hosts:
Epichrysomallidae (20)
Hosts: Ficus (non-pollinators)
Eunotidae (23)
Hosts: Homoptera (Coccoidea, Psyllidae, Aphidae), including egg predators
Herbertiidae (3)
Hosts: Diptera (Agromyzidae)
Hetreulophidae (3)
Hosts: unknown
Heydeniidae (2)
Hosts: Coleoptera (Buprestidae, Cerambycidae, Scolytidae)
Keryinae - incertae sedis in Chalcidoidea (1)
Hosts:
Louriciinae - incertae sedis in Chalcidoidea (1)
Hosts: Coleoptera (Cerambycidae)
Lyciscidae (28)
Lyciscinae (26)
Hosts: Blattaria (Blattellidae, Blattidae); Coleoptera (Cerambycidae, Curculionidae); Hymenoptera (Apidae, Braconidae, Ichneumonidae, Sphecidae, Vespidae)
Solenurinae (2)
Hosts: Coleoptera (Cerambycidae)
Macromesidae (1)
Hosts: Coleoptera (Scolytidae, Curculionidae)
Melanosomellidae (30)
Hosts: gall-makers
Micradelinae - incertae sedis in Chalcidoidea (1)
Hosts: Hymenoptera (Asaphesinae)
Moranilidae (15)
Moranilinae (14)
Hosts: Coleoptera (Coccinellidae); Hemiptera (Aphididae, Asterolecaniidae, Coccidae, Margarodidae); Hymenoptera (Encyrtidae)
Tomocerodinae (1)
Hosts: Hemiptera (Lecanodiaspididae)
Neapterolelapinae - incertae sedis in Chalcidoidea (3)
Hosts: unknown
Neodiparidae (2)
Elatoidinae (1)
Hosts: Homoptera (Pseudococcidae)
Neodiparinae (1)
Hosts: unknown
Ooderidae (1)
Hosts: Coleoptera (Buprestidae, Scolytidae)
Ormyridae (6)
Asparagobiinae (2)
Hosts: Asparagus spp., Halleria spp. (gall-makers)
Hemadinae (1)
Hosts: Vaccinium spp. (gall-makers)
Ormyrinae (3)
Hosts: gall-maker Hymenoptera (Chalcidoidea, Cynipidae) and Diptera (Cecidomyiidae, Tephritidae)
Parasaphodinae - incertae sedis in Chalcidoidea (1)
Hosts: Hemiptera (Eriococcidae, Margarodidae, Stictococcidae)
Pelecinellidae (3)
Nefoeninae (1)
Hosts: unknown (possibly wood-boring Coleoptera)
Pelecinellinae (2)
Hosts: Coleoptera
Pirenidae (17)
Cecidellinae (1)
Hosts: Diptera (Cecidomyiidae); Hymenoptera (gall-maker Braconidae)
Eriaporinae (2)
Hosts: Hemiptera (Coccoidea)
Euryischinae (3)
Hosts: Hemiptera (Coccoidea)
Pireninae (8)
Hosts: Diptera (Cecidomyiidae)
Tridyminae (9)
Hosts: Diptera (Cecidomyiidae)
Pteromalidae (410)
Colotrechninae (19)
Amerostenini (4)
Hosts: Coleoptera (Anthribidae)
Colotrechnini (12)
Hosts: Coleoptera (Anthribidae); Diptera; associated with galls
Divnini (1):
Hosts: unknown
Trigonoderopsini (2)
Hosts: unknown
Erixestinae (1)
Hosts: Coleoptera (Chrysomellidae)
Metasteninae (21)
Hosts: Coleoptera; Diptera; Hemiptera; Hymenoptera; Lepidoptera; Orthoptera
Miscogastrinae (50)
Diconocarini (1)
Hosts: unknown
Miscogastrini (14)
Hosts: Diptera (mainly Agromyzidae, Cecidomyiidae, Chloropidae), Lepidoptera (Nepticulidae)
Sphegigastrini (35)
Hosts: Coleoptera (Curculionidae); Diptera (Agromyzidae, Anthomyiidae, Cecidomyiidae, Chloropidae, Drosophilidae, Ephydridae, Muscidae, Opomyzidae, Sarcophagidae, Stratiomyiidae, Tephritidae); Hymenoptera (Braconidae, Cynipidae, Eulophidae, Eurytomidae); Lepidoptera (Coleophoridae, Gelechiidae, Gracillariidae, Lasiocampidae, Nepticulidae, Pterophoridae, Sesiidae, Tortricidae); Siphonaptera (Ceratophyllidae)
Ormocerinae (6)
Hosts: Diptera (Cecidomyiidae), Hymenoptera (Cynipidae); gall-makers
Pteromalinae (296)
Otitesellini (29)
Hosts: Ficus spp. (non-pollinators)
Pteromalini (267)
Hosts: Coleoptera, Lepidoptera, Diptera, Hymenoptera, Arachnida (egg predators); Ficus spp. (non-pollinators)
Trigonoderinae (10)
Hosts: Coleoptera (Anobiidae, Anthribidae, Buprestidae, Cerambycidae, Chrysomelidae, Ciidae, Colydidae, Cucujidae, Curculionidae, Eucnemidae, Scolytidae, Tenebrionidae)
Pteromalidae incertae sedis (7):
Spalangiidae (6)
Erotolepsiinae (4)
Hosts: unknown
Spalangiinae (2)
Hosts: Diptera (mainly Muscidae, Calliphoridae, Sarcophagidae)
Storeyinae - incertae sedis in Chalcidoidea (1)
Hosts: unknown
Systasidae (3)
Trisecodinae (1)
Hosts: Diptera (Agromyzidae)
Systasinae (2)
Hosts: Diptera (Agromyzidae, Cecidomyiidae)