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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Flies (Diptera) » "Nematocera" (Non-Brachycera) » Bibionomorpha » Gall Midges (Cecidomyiidae) » Acericecis » Ocellate Gall Midge (Acericecis ocellaris)
Photo#181317
Galls? - Acericecis ocellaris
Copyright © 2008 Scott Justis

Galls? - Acericecis ocellaris
Norfolk, Virginia, USA
May 5, 2008
Size: 12mm
Or fungus of some sort? The center area is raised. Found on maple leaf.
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Contributed by Scott Justis on 8 May, 2008 - 9:37am
Last updated 22 May, 2008 - 5:43pm

Cool image!
Joyce Gross can often help out with possible galls. Whatever it is, it's a great pattern!
… Ken Schneider, 8 May, 2008 - 10:45am login or register to post comments

 
Thanks!
I saw quite a number of these and realized they could be galls, so I took this image.
… Scott Justis, 8 May, 2008 - 10:57am login or register to post comments

 
If you have a good hand lens -
you could try slicing the raised area in half with a sharp knife and taking a look at what's inside...
… Ken Schneider, 8 May, 2008 - 11:01am login or register to post comments

 
A quick web search
suggests that this could be a "maple eyespot gall"?? If so, it is caused by a gall midge (Acericecis ocellaris). Would be a new genus for BG - but please wait for an expert to comment...

See this image from North Carolina State University:

http://ipm.ncsu.edu/photogallery/MAPISP3.JPG
… Ken Schneider, 8 May, 2008 - 1:42pm login or register to post comments

 
Maple eyespot galls
That's what I was going to say (not that I'm an expert).
Nice composition! Really emphasizes the eye-ness of the spots.
… Charley Eiseman, 8 May, 2008 - 2:23pm login or register to post comments

 
I've got them, too...
I noticed these eyespots on maple tree leaves in the backyard yesterday. I am glad to find out what they are.
… Carol DiFiori, 8 May, 2008 - 2:28pm login or register to post comments

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