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Photo#307209
Cecidomyiid leaf galls/mines on Smilax - Meunieriella on-smilax

Cecidomyiid leaf galls/mines on Smilax - Meunieriella on-smilax
Marlton, Burlington County, New Jersey, USA
July 20, 2009
Size: Maybe around 5 mm?
They were roughly 5 mm, some larger some smaller. All found on some little woody vine that is on the ground of the pine/oak woods. I think that these concentric bulls-eye type blotches may be some type of leaf mines due to the hole at center bottom.
http://www.flickr.com/photos/25980517@N03/3528987433/

Edit - look into Proleucoptera smilaciella – 0474
maybe this one???

Images of this individual: tag all
Cecidomyiid leaf galls/mines on Smilax - Meunieriella on-smilax Cecidomyiid leaf galls/mines on Smilax - Meunieriella on-smilax Cecidomyiid leaf galls/mines on Smilax - Meunieriella on-smilax Cecidomyiid leaf galls/mines on Smilax - Meunieriella on-smilax

Moved

Moved
Moved from Liliaceae Galls Caused by Undescribed Midges.
No change; I just had to do this to move the guide page into Lasiopteridi. Dr. Gagne just confirmed that the midge that causes these has still never been reared.

Moved
Moved from Unidentified Midge Galls.
See guide page... I think it's useful to make guide pages for undescribed species for which some information exists.

 
Good idea
Maybe I'll look for some more tomorrow. T-storm moving in now.

Moved
Moved from Gall Midges.

Moved
Moved from ID Request.

Smilax galls
These are cecidomyiid galls, but the adults have never been reared (as of 1989, anyway). Galls like this sure seem to be in the gray area between galls and leaf mines.

 
 
Shape and size, among other things
Many gall midges make "spot" galls just like these, such as this one on maple:

Exit hole in the bottom is typical for these (except for the maple one, actually, because in that species the larva lives exposed on the underside of the leaf). Proleucoptera smilaciella makes large, messy blotch mines (irregular--not perfect circles), often with several larvae sharing a mine. I don't remember offhand what my source was for this, but according to my manuscript the larva cuts a hole in the upper epidermis and pupates on top of the leaf (not the underside as Lutz says), but in any case you should see the ditinctive white cocoons somewhere on the leaves, each strapped down with a 1-cm-long H-shaped silken harness.

 
Thanks
I got rid of some of the images, but you can save or frass any that you would like.

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