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Willow Apple Gall Sawfly

Pontania californica

Photo by Machi
Published on Project Noah
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38.2234, -122.596

Field Notes

Description:

I was curious to see if they were fungal galls and cut one open and found a larva inside. The plant was covered in them.

Habitat:

Last two photos show the host plant. In a wooded area at the edge of Shollenberger Park

Reference Links:

Species Pontania californica - Willow Apple Gall Sawfly - BugGuide.Net

Species ID Suggestions

Comments (1)
Tukup
Hi Machi. This is really interesting. Recently I've been looking into galls, but not to the point of knowing what I'm talking about yet :-) I did find a similar gall in the following link. Open the link and go down to #7 - Initiation of Plant Galls. About the 4th photo down looks suspiciously like yours. Perhaps you can track it from this site. Good luck and thanks for sharing https://www2.palomar.edu/users/warmstrong/pljuly99.htm#initiation
Photographed
PublishedJanuary 26, 2019

Spotted for Missions

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Flora and Fauna of California Wilderness
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Wilderness Friends of California
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Northern California Flora and Fauna

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