Rhopalomyia californica gall with odd hole - Rhopalomyia californica
Carpinteria Salt Marsh, Carpinteria, Santa Barbara County, California, USA
December 26, 2011
Size: 11 mm (gall)
At first I thought there might be intact R. californica pupae protruding from the gall's surface, but closer examination shows them to be exuviae. Here's one of two I photographed.
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