Don't know if insect related - Celticecis aciculata

Change in identification

Celticecis unguicula is now considered a synonym of C. spiniformis, but I think this is actually the newly described species C. aciculata.

… Charley Eiseman, 11 September, 2013 - 7:22pm

Moved

Moved from galls. Identified from an illustration in this book.

… Charley Eiseman, 16 August, 2008 - 12:40pm

Plant species

is important in identifying galls. These remind me of galls I found recently on hackberry leaves, which it looks like your leaves may be. Many species of psyllids make galls on hackberry, so that would be my guess--if this is in fact hackberry. If it's not, these might be from some other aphid-like insect. They look more regular than mite galls to me. (I'm not a gall expert, but I've been working on figuring a lot of them out lately.)

… Charley Eiseman, 7 July, 2008 - 3:23pm

Sugarberry

The slender shape, gently rounded base, and especially the untoothed margin of this leaf identifies it as Sugarberry (Celtis laevigata), a congener of Hackberry (C. occidentalis) (which has a toothed margin).

… John Pearson, 7 January, 2010 - 1:32pm

Thank you for your time.

… Rene Madere, 7 January, 2010 - 2:56pm

Reminds me of the

galls that mites of the family Eriophytae produce.
http://bugguide.net/node/view/91582/bgimage

… Jonas Insinga, 7 July, 2008 - 3:03pm

must be related--

many insects chemically induce plant tumors ['galls'] to provide food for their young [young develop inside]. an expert [i'm not] could tell which insect is the culprit based on galls' shape, etc. features
Update: MY BAD, i forgot about mites, i did'n mean to discriminate and humbly ask both the mislead Requestor and Acari to accept my sincere apology :-[

… v belov, 7 July, 2008 - 1:01pm

Galls

Glad I found this site. Your team is a lot of help to me as a novice. As soon as I can talk my wife into it I will make a contribution to the cause.

… Rene Madere, 7 July, 2008 - 7:45pm