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Photo#1028926
Disholcaspis mamillana - Disholcaspis simulata
Copyright © 2014 Byrain

Disholcaspis mamillana - Disholcaspis simulata
UC Davis Arboretum, Davis, Yolo County, California, USA
December 24, 2014
On Quercus durata, the host was labeled in the arboretum.

Same oak as .
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Contributed by Byrain on 26 December, 2014 - 9:31pm
Last updated 12 January, 2015 - 1:05am

Comments

Moved
Moved from Gall Wasps.
… Joyce Gross, 12 January, 2015 - 1:05am login or register to post comments

what about Disholcaspis simulata?
See here.

Do you happen to have any to cut open? The freely-floating larval chamber would point to D. simulata.

I'm not sure how the larval chambers would compare with galls that are old (occupants have exited).

Another reason I lean towards D. simulata is the host, Q. durata. Ron Russo (2006) lists D. mamillana only on blue and scrub oak. D. simulata I know is on durata.

Let me know what you think....

The 3rd and 4th images in this series seem to be leaf galls. Am I right? I'm going to unlink them and comment separately.
… Joyce Gross, 6 January, 2015 - 2:01am login or register to post comments

 
Yes.
After I thought about D. simulata too after I suggested D. mamilliana, but was unsure. I have all 4 still, they were all clearly stem galls, I'll cross section a few of them and take photos.
… Byrain, 6 January, 2015 - 10:54am login or register to post comments

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