Acraspis quercushirta
adult female, Aug 31 2020
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Cynipidae
Genus: Acraspis
Species:
A. quercushirta
Binomial name
Acraspis quercushirta
Synonyms
  • Acraspis macrescens Kinsey, 1936
  • Acraspis macrocarpae Bassett, 1890
  • Acraspis undulata Gillette, 1893
  • Cynips quercushirta Bassett, 1864

Acraspis quercushirta, the jewel oak gall wasp, is a species of gall wasp in the family Cynipidae, [2][3] tribe Cynipini (oak gall wasps),[4] found in North America.[5][6]

Hosts are white oaks, including bur oak, Gambel oak, Chapman oak, swamp chestnut oak, and chestnut oak.[1]

Ecology and Life History

Like most oak gall wasps, this species has two generations per year - one asexual (or agamic) and one sexual, with each generation producing distinct galls.[1] The wingless females of the asexual generation emerge from their galls in fall and climb up an oak tree to oviposit in bud scales thereby inducing the gall development.[1][7] These inconspicuous galls and their larval inhabitants overwinter and continue their development in spring before adults emerge in late May and early June.[1] These sexual generation adults mate and the females oviposit on veins on the underside of host leaves.[2][8] The induced gall is detachable, oval in shape, and the color can range from white to yellowish to tan or brown. The surface is fissured into facets that end in a short, hard point, reminiscent of jewelry.[9] These galls typically fall with the leaves in autumn with the asexual female adults emerging shortly thereafter.

References

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Wikispecies has information related to Acraspis quercushirta.
  1. 1 2 3 4 5 James A. Nicholls; George Melika; Scott C. Digweed; Graham N. Stone (1 June 2022). "Pairing of sexual and asexual generations of Nearctic oak gallwasps, with new synonyms and new species names (Hymenoptera: Cynipidae, Cynipini)". Zootaxa. 5145: 1–79. doi:10.11646/ZOOTAXA.5145.1.1. ISSN 1175-5334. Wikidata Q113387522.
  2. 1 2 Lewis H. Weld (1959), Cynipid Galls of the Eastern United States, Ann Arbor, OCLC 4854623, Wikidata Q100986199{{citation}}: CS1 maint: location missing publisher (link)
  3. ↑ Graham N Stone; Karsten Schonrogge; Rachel J Atkinson; David Bellido; Juli Pujade-Villar (1 January 2002). "The population biology of oak gall wasps (Hymenoptera: Cynipidae)". Annual Review of Entomology. 47: 633–668. doi:10.1146/ANNUREV.ENTO.47.091201.145247. ISSN 0066-4170. PMID 11729087. Wikidata Q34453785.
  4. ↑ George Melika; Warren Abrahamson (2002). Review of the World Genera of Oak Cynipid Wasps (Hymenoptera: Cynipidae: Cynipini). pp. 150–190. ISBN 978-963-502-765-1. Wikidata Q102114229. {{cite book}}: |journal= ignored (help)
  5. ↑ "Acraspis macrocarpae Bassett". GBIF.
  6. ↑ "Acraspis macrocarpae Bassett, 1890". Discover Life.
  7. ↑ Weld, Lewis H. (January 2002). "Gall-inhabiting Cynipid Wasps". Proceedings of the United States National Museum. United States National Museum. 68: 58.
  8. ↑ Felt, Ephraim Porter (1940). Plant Galls and Gall Makers. Comstock Publishing Company, Inc., Ithaca NY – via HathiTrust Digital Library.
  9. ↑ "Species Acraspis macrocarpae - Jewel Oak Gall Wasp". BugGuide.net.
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