Phylloteras cupella, formerly Trigonaspis cupella, also known as the urn gall wasp or the banded urn gall wasp, is a species of cynipid wasp that induces leaf galls on a number of oak species in western North America.[1][2] Host species include Arizona white, blue, Engelmann, gray, leather, netleaf, scrub, and shrub oaks.[1] In the United States, galls induced by this species of wasp have been documented in California, Arizona, and New Mexico.[2] This wasp is most likely also in Mexico and Canada.[3]
| Phylloteras cupella | |
|---|---|
| |
| Santa Clara County, California, 2021 | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Cynipidae |
| Subfamily: | Cynipinae |
| Tribe: | Cynipini |
| Genus: | Phylloteras |
| Species: | P. cupella
|
| Binomial name | |
| Phylloteras cupella (Weld, 1926)
| |
| Synonyms | |
|
Trigonaspis cupella | |
The galls usually have an ombré gradient: lighter at the top, and darker toward the bottom.[1] New galls may be yellow, red, or mauve, while aging galls display a distinctly purple tint, and old galls ultimately turn brown.[1]
The wasp measures 1.3–2 millimeters in length.[4]
References edit
- ^ a b c d Russo, Ron (2006) [1979]. Field Guide to Plant Galls of California and Other Western States. California Natural History Guide No. 91 (Rev. ed.). Berkeley, Calif.: University of California Press. p. 167. ISBN 978-0-520-24886-1. LCCN 2006009332. OCLC 65207054.
- ^ a b Russo, Ronald A. (2021). Plant Galls of the Western United States. Princeton University Press. p. 197. doi:10.1515/9780691213408. ISBN 978-0-691-21340-8. LCCN 2020949502. OCLC 1239984577. S2CID 238148746.
- ^ "Phylloteras cupella (agamic)". www.gallformers.org. Retrieved 2023-11-03.
- ^ Weld, Lewis H. (1926). "Field notes on gall-inhabiting cynipid wasps with descriptions of new species". Proceedings of the United States National Museum. 68 (2611): 50. doi:10.5479/si.00963801.68-2611.1. hdl:10088/15671 – via Smithsonian Research Online.
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