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Coptodisca
Photo#1040151
Copyright © 2015
Thomas Wilson of Armistead Gardens in Baltimore City
Oak Leaf Mine ID Request -
Coptodisca
Herring Run Watershed, Baltimore City County, Maryland, USA
October 25, 2014
Observed on a Quercus sp.
Topside.
Images of this individual:
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Contributed by
Thomas Wilson of Armistead Gardens in Baltimore City
on 13 February, 2015 - 4:09pm
Last updated 13 February, 2015 - 5:36pm
Moved
Moved from
Unidentified Leaf Mines
.
Very interesting. This is almost certainly an undescribed species. The only reference I have found to an eastern
Coptodisca
on oak is an offhand mention in Forbes' (1923) Lepidoptera of NY & Neighboring States that a "rather distinct form occurs on white oak." Any chance you can figure out what kind of oak this was? I'd also be curious to know the approximate size of this mine. The oak
Coptodisca
mines I've seen in California are tiny. In CA, there is a single described species on live oaks, and there are supposed to be 4-5 undescribed species on other oaks.
…
Charley Eiseman
, 13 February, 2015 - 5:36pm
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P.S.
I hope I didn't incorrectly ID the plant.
…
Thomas Wilson of Armistead Gardens in Baltimore City
, 13 February, 2015 - 5:53pm
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Toothed leaf margin is suspicious
Any chance this was actually a huge hickory leaflet?
…
Charley Eiseman
, 13 February, 2015 - 6:06pm
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Chinquapin Oaks
have this but again I am not able to say for sure. (Especially since this leaf is not densely hairy underneath.)
See:
http://www.carolinanature.com/trees/qumu.html
"In the White Oak group, Chinkapin Oak can quickly be told apart from Chestnut Oak and Swamp Chestnut Oak by the pointed teeth on the leaves."
…
Thomas Wilson of Armistead Gardens in Baltimore City
, 13 February, 2015 - 6:13pm
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Yes--
so I sent an email to my local plant guy to get his feedback. I will let you know if I was correct, or mistaken (for which I pre-emptively apologize profusely.)
…
Thomas Wilson of Armistead Gardens in Baltimore City
, 13 February, 2015 - 6:09pm
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Quite large--
this one was (relatively-speaking.) I will add less-cropped photos.
…
Thomas Wilson of Armistead Gardens in Baltimore City
, 13 February, 2015 - 5:41pm
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