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View Thread :: Identification queries :: Diptera (adults)
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Gall midge ?
#1 Print Post
Posted on 24-07-2014 20:20

Posts: 665
Joined: 06.09.05

Spotted several of these tiny flies on marguerite flowers- 2nd one seems to be ovipositing. About 1.5mm body length. Taken last few days, south coast UK. Guessing they are gall midges ?

Any thoughts
Brian v.
Edited by LordV on 24-07-2014 20:21
#2 Print Post
Posted on 24-07-2014 20:25
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Location: Padova - Italy
Posts: 982
Joined: 01.06.12

Yes, I think is a Cecidomyiidae too. No idea about the genus...I just have some familiarity with Aphidoletes spp.
John Carr
#3 Print Post
Posted on 25-07-2014 00:07
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Location: Massachusetts, USA
Posts: 8032
Joined: 22.10.10

Does marguerite mean Asteraceae, Anthemidiae near Chrysanthemum? If so, based on appearance and host plant it should be Ozirhincus longicollis or tanaceti.
#4 Print Post
Posted on 25-07-2014 10:57

Posts: 665
Joined: 06.09.05

Thanks for the help. Marguerite= Argyranthemum frutescens or Leucanthemum × superbum not sure which but the fly looks extremely similar to shots of Ozirhincus tanaceti
Brian V.
John Carr
#5 Print Post
Posted on 29-12-2019 20:29
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Location: Massachusetts, USA
Posts: 8032
Joined: 22.10.10

The two species have now been synonymized, so on Anthemideae with 10 flagellomeres it is Ozirhincus longicollis.
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