Gall - Cynipid Wasp - Andricus atrimentus - Feron atrimentum

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Photo#130380

Copyright © 2007 Barry Grivett

Gall - Cynipid Wasp - Andricus atrimentus - Feron atrimentum -

San Jose/Alum Rock Park, Santa Clara County, California, USA
July 11, 2007
Size: 4.5 mm diameter

This is the spring bisexual generation a.k.a. Paper Bag Gall (Wasp) on Blue Oak. Species confirmed by Ron Russo, author of Field Guide to Plant Galls of California and Other Western States (ISBN 0520248864); see page 144.

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Gall - Cynipid Wasp - Andricus atrimentus - Feron atrimentum - female

Gall - Cynipid Wasp - Andricus atrimentus - Feron atrimentum - male - female

Contributed by Barry Grivett on 24 July, 2007 - 9:45pm
Last updated 25 July, 2007 - 11:15pm

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