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Photo#1586751
St. Andrews leaf miner on Helenium amarum SA1410 2018 1 - Bucculatrix staintonella

St. Andrews leaf miner on Helenium amarum SA1410 2018 1 - Bucculatrix staintonella
Laurinburg, Scotland County, North Carolina, USA
September 4, 2018

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St. Andrews leaf miner on Helenium amarum SA1410 2018 1 - Bucculatrix staintonella St. Andrews leaf miner on Helenium amarum SA1410 2018 2 - Bucculatrix staintonella St. Andrews leaf miner on Helenium amarum SA1410 2018 3 - Bucculatrix staintonella St. Andrews leaf miner on Helenium amarum SA1410 2018 4 - Bucculatrix staintonella St. Andrews leaf miner on Helenium amarum SA1410 2018 5 - Bucculatrix staintonella St. Andrews leaf miner on Helenium amarum SA1410 2018 6 - Bucculatrix staintonella St. Andrews leaf miner on Helenium amarum SA1410 2018 7 - Bucculatrix staintonella St. Andrews leaf miner on Helenium amarum SA1410 2018 8 - Bucculatrix staintonella St. Andrews leaf miner on Helenium amarum SA1410 2018 9 - Bucculatrix staintonella St. Andrews leaf miner on Helenium amarum SA1410 2018 10 - Bucculatrix staintonella

Moved
Moved from Section II (aster and mint leafminers).

Terry Harrison dissected an adult and says it's unmistakably Bucculatrix staintonella, which is surprising given that he and I have both reared that species from larvae mining leaves of Symphyotrichum only in very early spring, completing development as miners rather than feeding externally as these larvae did when they got older.

Two adults just emerged...
and it's a good thing, because the leaves are getting all moldy (I apparently overhydrated the vials).

 
Great news! Thank you for al
Great news! Thank you for all of the updates. I have most of the leaf tiers here--I am hoping some of them will successfully pupate.

Moved
Moved from Unidentified Leaf Mines.

Goes to show no leaf is too narrow to mine!

 
I'd looked for mines on this
I'd looked for mines on this plant for at least the last two years and have never found anything... I suppose population cycles and/or variation in space could easily explain this... perhaps suggesting that plants on which I have seen no miners may yet yield some, if given enough time or if I look in enough sites. The crazy thing about this one is that the mines don't even take up the entire leaf width, even as narrow as the leaves are!

 
Yes
When I was taking photos of a larva mining a leaf last night, I was surprised to see that it was actually making a second pass--it had mined up the leaf in a super-thin mine and had doubled back and was now mining back down, still with room to spare.

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