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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Flies (Diptera) » "Nematocera" (Non-Brachycera) » Gnats, Gall Midges, and March Flies (Bibionomorpha) » Fungus Gnats and Gall Midges (Sciaroidea) » Gall Midges and Wood Midges (Cecidomyiidae) » Gall Midges (Cecidomyiinae) » Cecidomyiidi
Photo#1307302
Cecidomyiidae galls
Copyright © 2016 MJ Hatfield

Cecidomyiidae galls
Sheeder Prairie, Guthrie County, Iowa, USA
June 27, 2016
June 27, 2016: collected conical leaf galls on Jerusalem Artichoke, Helianthus tuberosus
July 8, 2016: found nearly dead adult gall fly and spent pupa mostly emerged from gall
Thanks much to both M. Palmer and J. Pearson for plant ID.

Images of this individual: tag all
Cecidomyiidae galls Cecidomyiidae gall with spent fly pupa Cecidomyiidae, spent pupa Cecidomyiidae, dorsal - female Cecidomyiidae, dorsalX - female
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Contributed by MJ Hatfield on 23 October, 2016 - 7:56am
Last updated 13 November, 2016 - 7:15pm

Moved
Moved from Gall Midges and Wood Midges.
… John F. Carr, 24 October, 2016 - 3:30pm login or register to post comments

Moved
Moved from Plant Images Requiring IDs To Assist In Arthropod Identification.
… MJ Hatfield, 24 October, 2016 - 12:30pm login or register to post comments

Asteraceae
Leaves imply Vernonia, but it looks like they are opposite which would rule that out. I would guess a Helianthus or a closely related genus.
… Michael W. Palmer, 23 October, 2016 - 12:38pm login or register to post comments

 
Helianthus
I agree that this is a species of Helianthus. The hairy stem suggests H. tuberosus. This and three other congeners (H. grosseserratus, H. rigidus, and H. annuus) have been identified in Sheeder Prairie Preserve in the past.
… John Pearson, 24 October, 2016 - 10:43am login or register to post comments

 
H. tuberosus
The second photo you just added shows the leaf with a rounded base and a winged petiole, good indicators of H. tuberosus.
… John Pearson, 24 October, 2016 - 5:07pm login or register to post comments

 
Thank you
John and Michael.
… MJ Hatfield, 13 November, 2016 - 7:16pm login or register to post comments

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