Feron gigas, also known as the saucer gall wasp, is a species of gall-forming wasp in the genus Feron.[1][2] It induces galls on the leaves of scrub oaks, blue oaks, and Engelmann oaks. The galls produced by its all-female generation, which emerges in winter, are 3-4 mm wide, circular with raised edges. They are red, pink, brown, or purple. The larval chamber exists as a raised bump in the gall's center. The bisexual generation produces galls that are brown and cone-shaped.[3]

Feron gigas
Galls formed by the unisexual generation of F. gigas
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Cynipidae
Genus: Feron
Species:
F. gigas
Binomial name
Feron gigas
Kinsey, 1922
Synonyms

Andricus gigas

References

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  1. ^ "Species Andricus gigas - Saucer Gall Wasp". bugguide.net. Retrieved 2022-09-09.
  2. ^ Cuesta-Porta, Victor; Melika, George; Nicholls, James A.; Stone, Graham N.; Pujade-Villar, Juli (2023-11-07). "Re-establishment of the Nearctic oak cynipid gall wasp genus Feron Kinsey, 1937 (Hymenoptera: Cynipidae: Cynipini), including the description of six new species". Zootaxa. 5366 (1): 1–174. doi:10.11646/zootaxa.5366.1.1. hdl:20.500.11820/8d7cf66b-8011-4572-b520-b8f5d78deae2. ISSN 1175-5334. PMID 38220731. S2CID 265191343.
  3. ^ Russo, Ronald A. (2021). Plant galls of the Western United States. Princeton, New Jersey: Princeton University Press. pp. 284–286. ISBN 978-0-691-21340-8. OCLC 1239984577.
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