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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Flies (Diptera) » "Nematocera" (Non-Brachycera) » Gnats, Gall Midges, and March Flies (Bibionomorpha) » Fungus Gnats and Gall Midges (Sciaroidea) » Gall Midges and Wood Midges (Cecidomyiidae) » Gall Midges (Cecidomyiinae) » Cecidomyiidi » Asphondyliini » Polystepha
Photo#1037502
White oak galls - Polystepha
Copyright © 2015 Even Dankowicz

White oak galls - Polystepha
USDA National Arboretum, District of Columbia, USA
July 6, 2014
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Contributed by Even Dankowicz on 1 February, 2015 - 12:05pm
Last updated 20 April, 2015 - 10:13am

Moved
Moved from ID Request.
… Charley Eiseman, 20 April, 2015 - 10:13am login or register to post comments

Underside?
Do you have shots of the undersides of these leaves?
The two photos may show different kinds of galls--at the moment I'm not sure whether the ones in the other photo are midge or wasp galls.
The one in the upper left in this photo looks like a fungus gall; I would guess Polystepha based on what I can see of the other three. Also looks like some Brachys feeding sign at the edge of the leaf.
… Charley Eiseman, 1 February, 2015 - 12:37pm login or register to post comments

 
No, I don't have any photos o
No, I don't have any photos of the other side of these individual leaves.
… Even Dankowicz, 1 February, 2015 - 12:41pm login or register to post comments

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