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Photo#1213568
St. Andrews Leaf miner on Quercus laevis SA322 2016 2 - Eriocraniella mediabulla

St. Andrews Leaf miner on Quercus laevis SA322 2016 2 - Eriocraniella mediabulla
Laurinburg, Scotland County, North Carolina, USA
April 20, 2016

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St. Andrews Leaf miner on Quercus laevis SA322 2016 2 - Eriocraniella mediabulla St. Andrews Leaf miner on Quercus laevis SA322 2016 3 - Eriocraniella mediabulla St. Andrews Leaf miner on Quercus laevis SA322 2016 4 - Eriocraniella mediabulla

Moved
Moved from Eriocraniella platyptera.

Terry Harrison just examined the adult and says it is definitely mediabulla. So the possible differences in leaf min characteristics I had identified based on the original description of mediabulla and my own observations of platyptera are useless. Your other Eriocraniella mines may therefore all likewise be mediabulla, but I'll just move them up to genus for now.

 
interesting--sad that the lea
interesting--sad that the leaf mines may not be distinguishable. If I see them again on Q. falcata I will try to collect them, in case they are something different.

Adult

The adult has just emerged
So I should be able to get the ID confirmed eventually.
Incidentally, the larva exited the mine and burrowed on April 22, so you got it to me just in time.

Moved
Moved from Eriocraniella.
The differences in the mines of the two species are discussed in this paper.

Moved

Eriocraniella
If this is a described species, it is probably E. platyptera, which is only known from Ithaca, NY and Nantucket, MA. The other known eastern species is E. mediabulla, known from the Gulf Coast states. Whichever species, this would be a substantial extension of the known range, and both Q. laevis and Q. margaretta would be new host species. These are difficult to rear (larvae burrow into soil and adults emerge the following spring).

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