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Diptera.info :: Identification queries :: Diptera (adults)
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Dolichopodidae from Spain
Jfdocampo
#1 Print Post
Posted on 22-11-2015 21:17
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Location: Madrid (Spain)
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Mediterranean vegetation, near a river.
Madrid (Spain), 21/6/15

Regards,
Jfdocampo attached the following image:


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Edited by Jfdocampo on 22-11-2015 22:41
 
Jfdocampo
#2 Print Post
Posted on 22-11-2015 21:17
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...
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Jfdocampo
#3 Print Post
Posted on 22-11-2015 21:18
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...
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John Carr
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Posted on 22-11-2015 23:39
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Different species of Dolichopodinae, two Hercostomus and a Dolichopus.
 
http://www.flickr.com/photos/31715949@N00
Jfdocampo
#5 Print Post
Posted on 23-11-2015 08:02
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Thanks John. What part of the insect I have to photograph to separate both genera?

Edit: I had understood you wanted to tell me the possibilities were that the fly was or Hercostomus (two possibles species) or Dolichopus (one species), but now re-reading your answer I think that in fact you are saying that there are different species in the photographs, being Hercostomus in the first and second photographs, and Dolichopus in the third one. I took the photographs in the same area with an interval of twelve minutes only, to different individuals, but I thought all was the same. Can you confirm this last interpretation is correct?
Edited by Jfdocampo on 23-11-2015 10:03
 
John Carr
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Posted on 23-11-2015 13:36
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The second fly is a Hercostomus. The third fly is Dolichopus. I distinguished them by wing veins.

I thought the first was Hercostomus but now I think Dolichopus. The angle is a good one because it shows the male genitals.
 
http://www.flickr.com/photos/31715949@N00
Igor Grichanov
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Posted on 23-11-2015 19:53
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Nice pictures, but I can not add anything more to John Carr. Put more pictures here, then continue discussion.
Igor Grichanov
 
https://doli.vizrppnsuppl.com/
John Carr
#8 Print Post
Posted on 24-11-2015 03:36
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If the first and third flies are the same species you may be able to identify it from the combined views. I do not have literature for Spain. Keys to species traditionally start with leg color (yellow, with tip of hind tibia black), postocular hairs (white, not black), antenna color (all black), and shape of bend in vein M (two right angled turns). Then some speies are separated by male secondary sexual characters (none obvious in your photo).
 
http://www.flickr.com/photos/31715949@N00
Jfdocampo
#9 Print Post
Posted on 24-11-2015 20:11
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Thanks John and Igor. I have some other photographs but I'm not sure they contribute to make things clear, but in the doubt I upload them. I'm not very sure with the identity of the diferent individuals, but I think they are what I say in the next posts.

This is the same as the first photograph.
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Edited by Jfdocampo on 24-11-2015 20:24
 
Jfdocampo
#10 Print Post
Posted on 24-11-2015 20:15
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This is another shot between photo 1 & 2. Maybe the same individual that in some of that?
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Jfdocampo
#11 Print Post
Posted on 24-11-2015 20:16
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Another shot.
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Jfdocampo
#12 Print Post
Posted on 24-11-2015 20:18
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Sorry. I don't have any other shot of individual from photo 2.

And these are (I think) of the same individual from photo 3.
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Jfdocampo
#13 Print Post
Posted on 24-11-2015 20:19
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Igor Grichanov
#14 Print Post
Posted on 27-11-2015 19:21
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Dear Jfdocampo, sorry, your photos have no any hard character to diagnose the species. I can guess (50/50) that this is the commonn in the Mediterranian Dolichopus griseipennis Stannius, 1831.
Igor Grichanov
 
https://doli.vizrppnsuppl.com/
Jfdocampo
#15 Print Post
Posted on 30-11-2015 18:54
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Location: Madrid (Spain)
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Thanks Igor. Then the second photograph I uploaded on 22-11-15 is Hercostomus and all the rest, the two other photos from that day and the photos I uploaded on 24-11-15, are all Dolichopus cf. griseipennis. Right?
Edited by Jfdocampo on 30-11-2015 18:55
 
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