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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) » Lasiopteridi » Hackberry Gall Midges (Celticecis) » Hackberry Thorn Gall Midge (Celticecis spiniformis)
Photo#265043
galls - Celticecis spiniformis
Copyright © 2009 Andrew Williams

galls - Celticecis spiniformis
Overland Park, Johnson County, Kansas, USA
September 8, 2008
I'm assuming this is a gall caused by some sort of insect ? Any ideas?
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Contributed by Andrew Williams on 10 April, 2009 - 7:13pm
Last updated 21 August, 2009 - 7:58pm

Moved
Moved from Unidentified Galls. Celticecis spiniformis looks like a good match. If you don't think there are any hackberry trees at the park, I'll have to reconsider.
… Charley Eiseman, 21 August, 2009 - 7:58pm login or register to post comments

 
Hackberry
Hackberry (Celtis occidentalis) does have hairs on the veins of the leaf underside as in Andy's photo.
… John Pearson, 20 December, 2009 - 2:27pm login or register to post comments

 
thanks Charley
I appreciate the help on this.
… Andrew Williams, 21 August, 2009 - 9:54pm login or register to post comments

Galls
Most likely caused by cynipid wasps or cecidomyiid midges, but I'd have to know the host plant to figure it out. Do you have a shot of the whole leaf?
… Charley Eiseman, 10 April, 2009 - 11:44pm login or register to post comments

 
gall leaf
I'm not sure that I photo'd the whole leaf at that time, but I see that it's important on these galls. I'll do some digging to see if I did, and will post if I have more. Thanks for the help.
… Andrew Williams, 11 April, 2009 - 9:18am login or register to post comments

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