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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 » Unidentified gall on water oak (Polystepha Unidentified gall on water oak)
Photo#1798275
Galls on Black Oak - Polystepha
Copyright © 2020 Jim Brighton

Galls on Black Oak - Polystepha
Pickering Creek Audubon Sanctuary, Talbot County, Maryland, USA
September 14, 2013
Does anyone recognize what made these galls on a Black Oak leaf. They covered the entire leaf. Any help would be much appreciated. Thanks!
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Contributed by Jim Brighton on 10 April, 2020 - 11:40am

Moved
Moved from Unidentified Galls.

A long-standing mystery. Someone needs to collect and rear these--I have tried without success. I think they key will be to collect them as late in the season as possible.
… Charley Eiseman, 10 April, 2020 - 12:39pm login or register to post comments

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