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Hickory Gall Midges (Caryomyia)
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Caryomyia conoidea
Photo#27659
Copyright © 2005
tom murray
Hickory Gall Midge -
Caryomyia conoidea
Bolton, Worcester County, Massachusetts, USA
August 8, 2005
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Contributed by
tom murray
on 9 August, 2005 - 8:20pm
Last updated 19 July, 2020 - 11:27am
Moved
Moved from
Hickory Gall Midges
.
Adam, thanks for identifying a new species for the guide!
…
tom murray
, 19 July, 2020 - 11:26am
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Moved
Moved from
Hickory Onion Gall Midge
.
…
Charley Eiseman
, 18 July, 2020 - 11:35am
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enlarged picture added
It looks like the galls do have a pubescence.
…
tom murray
, 18 July, 2020 - 2:52pm
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Wonderful
In that case, I'm convinced these are Caryomyia conoidea. Glad you had that photo!
…
Adam Kranz
, 19 July, 2020 - 11:16am
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C conoidea
According to Gagne's description and the other observations we have, C caryaecola is always on leaf veins. I suspect this might be Caryomyia conoidea, which is found between veins and sometimes has a "cylindrical extension at apex" as seen in many of these galls. Knowing whether there was pubescence present would be useful. C marginata is also maybe a possibility.
…
Adam Kranz
, 18 July, 2020 - 11:25am
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Moved
Moved from
galls
. This is hickory, not chestnut. ID based on illustration and "smooth, onion-shaped galls" description in
this book
.
…
Charley Eiseman
, 16 August, 2008 - 2:47pm
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insect eggs?
I am pretty sure those are leaf beetle eggs. I don't know which leaf beetle feeds commonly on Chestnut, but that is the common appearance for leaf beetle eggs and they are usually laid in double rows. Angela
…
Angela
, 23 September, 2005 - 2:23pm
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Galls
They look more like galls to me.
However I could be wrong.
…
Charles Schurch Lewallen
, 9 August, 2005 - 9:31pm
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Galls
That sounds good, and is consistent with the other pictures in the guide. These were on a chestnut tree leaf. Thanks Charles.
…
tom murray
, 9 August, 2005 - 10:13pm
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