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Quadrastichodella nova Girault

Eucalyptus Seed Gall Wasp

(Life: Kingdom: Metazoa (animals); Phylum: Arthropoda; Class: Hexapoda; Order: Hymenoptera; Superfamily: Chalcidoidea; Family: Eulophidae; Subfamily: Tetrastichinae; Genus: Quadrastichodella)

Quadrastichodella nova Girault, 1922.

Distribution

South Africa.

Also Australasian, Nearctic, Neotropical, and Palaearctic regions.

Biology

Seed gall inducer on Eucalyptus species, with the Quadrastichodella nova gall community on Eucalyptus camaldulensis, also comprising the parasitoids Leprosa milga, Megastigmus zebrinus and a Aprostocetus species (Klein et al, 2015).  Oviposition is into young flower buds transforming them into seed-like galls in the seed capsules (Valentine, 1970). The origin of the gall was proven to be in the placenta of one of the locules of a flower bud (Klein et al. 2015), and not in a seed or ovule, as previously reported.

References

Ikeda, E. 1999. A revision of the world species of Quadrastichodella Girault, with descriptions of four new species (Hymenoptera, Eulophidae). Insecta Matsumurana 55: 13-35.

Klein H, Hoffmann JH, Neser S & Dittrich-Schroder G. 2015. Evidence that Quadrastichodella nova (Hymenoptera: Eulophidae) is the only gall inducer among four hymenopteran species associated with seed capsules of Eucalyptus camaldulensis (Myrtaceae) in South Africa. African Entomology 23: 207223. doi: 10.4001/003.023.0117
La Salle, J. 1994. North American genera of Tetrastichinae (Hymenoptera: Eulophidae). Journal of Natural History 28: 109-236.
Majer, J.D., Recher, H.F., Wellington A.B., Woinarski, J.C.Z. and Yen, A.L. 1997. Invertebrates of eucalypt formations. In: Eucalypt Ecology. Individuals to Ecosystems (eds J.E. Williams and J.C.Z. Woinarski) pp. 278-302. Cambridge University Press, Cambridge.

Mansfield S. 2016. New communities on eucalypts grown outside Australia. Frontiers in Plant Science. 7: 1812. DOI: 10.3389/fpls.2016.01812.

Valentine, E.W. 1970. A list of phytophagous Hymenoptera in New Zealand. New Zealand Entomologist 4: 52-62.

Credits

Photographs Oğuzhan & Miktad Doğanlar (Ahi Evran University).


Web author Simon van Noort (Iziko South African Museum)

 

Citation: van Noort, S. 2021. WaspWeb: Hymenoptera of the Afrotropical region. URL: www.waspweb.org (accessed on <day/month/year>).

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