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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » "Parasitica" - Parasitoid Wasps » Cynipoidea » Gall Wasps (Cynipidae) » Oak Gall Wasps (Cynipini) » Andricus » Small Oak Spindle Gall Wasp (Andricus chinquapin)
Photo#514240
swamp white oak finger gall - Andricus chinquapin
Copyright © 2011 Sara Rall

swamp white oak finger gall - Andricus chinquapin
Warren Twp. , Somerset County, New Jersey, USA
May 10, 2011
Size: 1 cm?
I found this little finger gall (I assume) on the underside of a white oak leaf. Any idea what made it?

No sign of gall on upperside of leaf.
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Contributed by Sara Rall on 10 May, 2011 - 10:06am
Last updated 11 May, 2011 - 9:47am

Moved
Moved from ID Request.
I frassed the second image, which shows that there is no sign of the gall on the upper leaf surface. I should note that Weld describes and illustrates this gall as projecting from the leaf edge as an extension of the vein, rather than coming out perpendicularly from the middle of the vein--but otherwise it looks just like this.
… Charley Eiseman, 10 May, 2011 - 6:59pm login or register to post comments

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