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Ruptured Twig Gall Wasp
Callirhytis perdens
33.025, -117.01
Field Notes
Description:
Bulbous growth in stem. It appears that whatever was in there has broken out. The end of the plant was dead beyond the gall.
Habitat:
Oak forest at Blue Sky Ecological Reserve
Notes:
"Larvae cause tapered stem galls on black oaks (Quercus kelloggi, Q. agrifolia, and Q. wislizenii). As the larvae develop, the stem ruptures and eventually expels the larval capsules onto the ground. The linear fissures remaining on the stem become black, which distinguishes them from other black oak stem galls."
Species ID Suggestions
1
Spotted for Missions
Photographed
PublishedMarch 6, 2012
Comments (2)