California Gall Wasp

Andricus quercuscalifornicus

Summary 2

Andricus quercuscalifornicus (occasionally Andricus californicus), or the California gall wasp, is a small wasp species that induces oak apple galls on white oaks, primarily the Valley Oak (Quercus lobata) but also other species such as Quercus berberidifolia. It is found from Washington, Oregon, and California to northern regions of Mexico. Often multiple wasps in different life stages occupy the same gall.

Sources and Credits

  1. (c) Franco Folini, some rights reserved (CC BY-SA), http://www.flickr.com/photos/78425154@N00/2067529676
  2. (c) Wikipedia, some rights reserved (CC BY-SA), https://en.wikipedia.org/wiki/Andricus_quercuscalifornicus

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