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Diptera.info :: Identification queries :: Diptera (adults)
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Opomyzidae
lagura
#1 Print Post
Posted on 12-02-2009 22:38
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Location: Helsingborg, Sweden
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Joined: 24.10.08

Can it be identified?

Size: ~5mm
Date: 14 December 2008
Location: Wooden railing around a pond (Helsingborg, Sweden)

Thank you!
lagura attached the following image:


[100.36Kb]
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lagura
#2 Print Post
Posted on 12-02-2009 22:38
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Location: Helsingborg, Sweden
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Another
lagura attached the following image:


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Sundew
#3 Print Post
Posted on 12-02-2009 23:03
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Location: Berlin, Germany
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In my garden, I'd call it Opomyza florum. However, we need Jan Willem's opinion to be sure.
Regards, Sundew
 
Roger Thomason
#4 Print Post
Posted on 12-02-2009 23:35
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I had one very similar last year...ID'd as Opomyza germinationis
Wouldn't be the first time I was wrong though.
Edited by Roger Thomason on 12-02-2009 23:39
 
lagura
#5 Print Post
Posted on 13-02-2009 00:11
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Wouldn't be the first time you were right either Wink

I use to call these flies O. florum too, and that's what they turn out to be most of the time (when viewed on my computer). This one struck me as too dark for O. florum. Could be O. germinationis. I don't know if some lack the narrow V-shaped mark on top of thorax.
www.bruphoto.com/2009/pics/larsdi.png
 
Sundew
#6 Print Post
Posted on 13-02-2009 00:26
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Once I had a very dark one, too, and nevertheless it was identified as O. florum (see http://www.dipter...ad_id=9063). So let's wait for Jan Willem.
 
lagura
#7 Print Post
Posted on 13-02-2009 00:35
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Very interesting information in that thread. Thanks for posting it Sundew!
Yes, let's wait for Jan Willem.
www.bruphoto.com/2009/pics/larsdi.png
 
Jan Willem
#8 Print Post
Posted on 13-02-2009 09:20
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Location: Waalwijk, The Netherlands
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A very strangely coloured specimen. The specimens of Opomyza germinationis I've seen sofar always have a distinct dark band along the costal vein. There seems to be a vague band along the costal vein. I don't know what to make of this band. Since the rest of the wing markings are very distinct, I'm inclined to say that this is not O. germinationis. However if this is a specimen of O. florum, it certainly is an aberrantly coloured one. I've seen strangly coloured specimens of O. florum before though.
I suppose you have not collected this specimen!?
I have to look for other characters to distinguish the two species. I will come back to you on this one.
Jan Willem
 
lagura
#9 Print Post
Posted on 13-02-2009 11:14
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Hi Jan Willem,
No, I did not collect the specimen. But I have some more pictures. Not sure they are of much help though.
lagura attached the following image:


[117.86Kb]
www.bruphoto.com/2009/pics/larsdi.png
 
lagura
#10 Print Post
Posted on 13-02-2009 11:14
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Another
lagura attached the following image:


[100.37Kb]
www.bruphoto.com/2009/pics/larsdi.png
 
Jan Willem
#11 Print Post
Posted on 13-02-2009 11:17
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Well at the moment I still think this is a aberrantly coloured specimen of O. florum.
Jan Willem
 
lagura
#12 Print Post
Posted on 13-02-2009 11:48
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Location: Helsingborg, Sweden
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Thank you very much for your help Jan Willem!
www.bruphoto.com/2009/pics/larsdi.png
 
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