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Diptera.info :: Identification queries :: Diptera (adults)
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Ectophasia oblonga m (Bel) ? --> Ectophasia crassipennis m
Christine Devillers
#1 Print Post
Posted on 11-08-2017 20:36
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Hi,

Could it be a male of Ectophasia oblonga ?
(Belgium, Spa, 2017-07-17)

Christine
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Christine Devillers
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Posted on 11-08-2017 20:37
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Posted on 11-08-2017 20:38
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johnes81
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Posted on 11-08-2017 22:17
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I think that it looks more like crassipennis male. The longitudinal stripe seems to be 1/5 of the abdomen width. The abdomen doesn't look longer than wide to me. Amazingly, the haustellum is always concealed behind something, so unable to determine length.

Wait for a specialist if they disagree.
 
Zeegers
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Posted on 12-08-2017 08:54
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although these Ectophasia are extremely variable, generally speaking males of oblonga are much redder. So I agree, this is most likely crassipennis.

Oblonga is not (yet) recorded from Belgium, is it ?

Theo
 
Christine Devillers
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Posted on 12-08-2017 14:09
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Thank you both,

I hesitated between oblonga and crassipennis because this male didn't look like the males of crassipennis that I usually see (the abdomen seemed longer and the sternite 3 narrower)

I don't know if Ectophasia oblonga has yet been seen in Belgium, but it is not reported from Belgium on the site of observation.be and of the Royal Institute of Natural Sciences of Belgium

Christine
 
johnes81
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Posted on 12-08-2017 14:47
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Hello, I want to elaborate on this thread but I will create my own thread to avoid confusion. I'll edit this post with a link to my new thread after posting.

https://diptera.info/forum/viewthread.php?thread_id=80765
Edited by johnes81 on 12-08-2017 14:55
John and Nini
 
Piluca_Alvarez
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Posted on 12-08-2017 14:56
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Only a little comment if somebody might be interested: this is being a catastrophic year for insects in Spain, but surprisingly it has been a good year for Ectophasia oblonga Smile First time ever that I see it in real life and not once but several times Smile No idea how it has been for the species in Central Europe.

And this one is E. crassipennis for me too. I always try to focus in abdomen's shape and avoid colours for the same reason Theo has mentioned (guess from whom I learned that Wink).
 
johnes81
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Posted on 12-08-2017 15:04
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Hello Piluca, I must admit that this thread has me losing confidence with my judgement of Ectophasia. Have a look at my post when you have time. What is your opinion?
John and Nini
 
Christine Devillers
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Posted on 13-08-2017 09:59
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Thanks for the information Piluca,
Do you have pictures of different look of oblonga male ?

Christine
 
Piluca_Alvarez
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Posted on 14-08-2017 06:51
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Dear Christine, I do have pictures but you get me at a pretty bad moment to process them Sad I will take note of this so that I don't forget and I shall post them as soon as I can (but it will be in days to come). Hopefully, this picture of E. oblonga can help to tell the difference Smile

http://www.biodiv...26460.html

The abdominal colour is usually more 'pinky' (hence the problem with the colours) but abdominal shape is diagnostic.

Best

Piluca
Edited by Piluca_Alvarez on 14-08-2017 06:52
 
Christine Devillers
#15 Print Post
Posted on 14-08-2017 21:04
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Thank you very much Piluca, it's very kind of you.
Christine
 
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16.12.17 15:08
If you know of any useful key(s) to the families of Diptera in the PUPAL stage, please send e-mail (spies@zi.biologie
.uni-muenchen.de) or post references here. Thank you Martin Spies

15.12.17 14:01
Danke Paul

12.12.17 12:36
Thorax black, somewhat shiny, with sparse dark grey dusting.

12.12.17 11:24
Thorax schwarz, etwas glänzend, mit spärlicher dunkelgrauer Bereifung Hallo, can anyone help translate the word Bereifung, I get tyre which of course doesn't fit Thx

20.11.17 15:09
Pls sign to help save Botanophila fonsecai https://home.38deg
rees.org.uk/?s=Fon
seca. Thx

17.11.17 14:22
Thanks Paul, interesting point

16.11.17 13:44
'Holding' might not be the perfect description. Apparently the armature makes contact with sensitive places on the female, coaxing her to agree to mate.

16.11.17 13:43
Is was not quite sure whether the word would apply correctly, but, yes, that is okay.

15.11.17 11:29
How about armature, would that fit? based on http://onlinelibra
ry.wiley.com/doi/1
0.1111/j.1365-3113
.2008.00422.x/pdf
it would seem that these spines etc are used to hold the female!

14.11.17 09:22
All spines, ridges, lobes, etc. on the femur.

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