Eutrichosomatidae

Eutrichosomatidae
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Superfamily: Chalcidoidea
Family: Eutrichosomatidae
Peck, 1951


Eutrichosomatidae is a family of parasatoid chalcid wasps.[1] Their bodies are black or metallic, with some species being covered in white hairs.[2] The genera Eutrichosoma and Peckania are distributed across the New World while Collessina is only found in Australia.[1] The genera Peckanius and Collessina are named after Dr Oswald Peck and D.H Colless respectively.[2] Both genera contain one species each while Eutrichosoma contains 3.[1]

Biology

The first instar larvae are active planidia that parasitize developing seed-feeding weevils.[1] Eggs are laid adjacent or away from the weevil egg and the larva must move to attach itself to the weevil larva.[3][1] The larva remains capable of locomotion until the weevil pupates in order to reattach itself as their host molts.[3] Due to their larval characteristics they are placed in a clade alongside Perilampidae and Eucharitidae.[3]

Taxonomy

Eutrichosomatidae was originally published as its own family it 1951, later in 1974 it was demoted to subfamily and placed in Pteromalidae[3] before being elevated back to family status in 2022.[4] It currently contains 3 genera with the genus Manineura being included in some sources:[5][1]

References

  1. ^ a b c d e f Heraty, John M.; Baker, Austin J. (2025-03-25), "Eutrichosomatidae", Chalcidoidea of the World, CABI Books, pp. 415–419, doi:10.1079/9781800623545.0031, ISBN 978-1-80062-352-1, retrieved 2026-02-23{{citation}}: CS1 maint: work parameter with ISBN (link)
  2. ^ a b Boucek, Z. (1975). "The pteromalid subfamily Eutrichosomatinae (Hymenoptera: Chalcidoidea)". Journal of Entomology Series B, Taxonomy. 43 (2): 129–138. doi:10.1111/j.1365-3113.1975.tb00123.x. ISSN 1365-3113.
  3. ^ a b c d Baker, Austin J.; Heraty, John M. (2020-02-27). "Larval morphology and life history of Eutrichosoma mirabile Ashmead and description of a new species of Eutrichosoma (Hymenoptera, Chalcidoidea)". Journal of Hymenoptera Research. 75: 67–85. doi:10.3897/jhr.75.47880. ISSN 1314-2607.
  4. ^ Zhang, Junxia; Heraty, John M.; Darling, Christopher; Kresslein, Robert L.; Baker, Austin J.; Torréns, Javier; Rasplus, Jean‐Yves; Lemmon, Alan; Moriarty Lemmon, Emily (2022-01-10). "Anchored phylogenomics and a revised classification of the planidial larva clade of jewel wasps (Hymenoptera: Chalcidoidea)". Systematic Entomology. 47 (2): 329–353. doi:10.1111/syen.12533. ISSN 0307-6970. Archived from the original on 2025-04-05.
  5. ^ UCD Community (2023). "Universal Chalcidoidea Database Website - Eutrichosomatidae". ucd.chalcid.org. Retrieved 2026-02-23.
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