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Diptera.info :: Family forums :: Syrphidae
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Neoascia cf. interrupta
affiniscyanoviridis
#1 Print Post
Posted on 17-11-2016 08:45
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Location: Poland
Posts: 384
Joined: 22.01.13

Hi,

is it possible to ID?

NE Poland 27042016

Best regards
Joao
affiniscyanoviridis attached the following image:


[32.08Kb]
Edited by affiniscyanoviridis on 23-11-2016 07:38
 
Sundew
#2 Print Post
Posted on 22-11-2016 01:32
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Location: Berlin, Germany
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This might be Neoascia podagrica, but these flies are tricky. To differentiate between Neoascia and Sphegina one needs to see the wing venation.
 
affiniscyanoviridis
#3 Print Post
Posted on 22-11-2016 08:38
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Location: Poland
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Ok, thanks for your reply.

I will check if I have a decent pictutre from the top!

Best regards
J
 
affiniscyanoviridis
#4 Print Post
Posted on 22-11-2016 08:52
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Location: Poland
Posts: 384
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Maybe it will help!

Regards
J
affiniscyanoviridis attached the following image:


[41.49Kb]
 
Sundew
#5 Print Post
Posted on 22-11-2016 13:16
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Neoascia podagrica has darkened cross veins that form a right angle (see https://www.flick...638744863/ and compare with a Sphegina in http://syrphidae..../file/3049). I think we can see three straight dark lines here, so I would prefer that species. Labeling the pics "Neoascia cf. podagrica" should not be too wrong!
 
Piet Nord
#6 Print Post
Posted on 22-11-2016 13:27
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Location: Germany
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Hi Sundew,

keep in mind that there are additional Neoascia with darkened cross veins. Par example N. interrupta which has a short third antennal segment and three pairs of spots (tergites 2-4 each one pair).
Very best regards
 
Sundew
#7 Print Post
Posted on 22-11-2016 15:17
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Nice to hear from you, dear Piet - I have already missed you! Indeed I overlooked N. interrupta that is not comparatively illustrated in my book and usually looks more colourful than N. podagrica (see https://www.flick...383858487/). There seem to be yellow spots at the basal corners of tergite 4, so "N. cf. interrupta" would possibly be closer to the truth Smile.
 
Piet Nord
#8 Print Post
Posted on 22-11-2016 19:14
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Location: Germany
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Dear Sundew, I missed you too! This female of Neoascia is indeed belonging to interrupta. I would expect this species in Poland in marshy areas surounding larger rivers and lakes or near Baltic Sea.
Very best regards
Piet
 
affiniscyanoviridis
#9 Print Post
Posted on 23-11-2016 07:31
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Location: Poland
Posts: 384
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Hi,

thanks you both for time and ID.

Best regards
Joao
 
Sundew
#10 Print Post
Posted on 24-11-2016 00:44
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You can delete the "cf." Grin Piet's identification is reliable without doubt.
 
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