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Diptera.info :: Identification queries :: Diptera (adults)
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Phasia for ID, C Spain --> Phasia (Hyalomyia) sp.
Piluca_Alvarez
#1 Print Post
Posted on 20-03-2014 15:50
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Location: Madrid, Spain
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A very early Phasia, I think Smile Found feeding on Euphorbia helioscopia in area with mediterranean vegetation in C Spain. Date: 19.03.2014. Any ideas? Thanks in advance! Smile
Piluca_Alvarez attached the following image:


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Edited by Piluca_Alvarez on 21-03-2014 20:09
 
Piluca_Alvarez
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Posted on 20-03-2014 15:51
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Another view.
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Piluca_Alvarez
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Posted on 20-03-2014 15:51
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And another one.
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ChrisR
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Posted on 20-03-2014 16:55
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My guess would be P. pusilla - can you see the halteres or face on any other photos? Smile
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London.
 
http://tachinidae.org.uk
Piluca_Alvarez
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Posted on 20-03-2014 19:27
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Thanks a lot for your reply, Chris!! Smile

I am afraid these are the only photos of this specimen Sad But I have much better pictures of another specimen feeding on the same flowers just a few minutes earlier. Only that the other one looks somehow different. The distance between the eyes looks a bit wider. Perhaps the female? No idea if both sexes can be told apart from external caracters in Phasia.

I am going to prepare pictures of the other specimen in a different thread as soon as I can Wink

But halteres are nearly impossible to photograph in Phasia Sad They are always covered by those huge calypters Angry What should I look for in the face of the other specimen? That will help me to select the most useful views Wink
 
ChrisR
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Posted on 20-03-2014 21:45
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Possibly female - Phasia pusilla & barbifrons are not easy to sex. Smile
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London.
 
http://tachinidae.org.uk
Zeegers
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Posted on 21-03-2014 09:03
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Pusilla or another species from the pusilla-group (Hyalomyia): there are many more in Spain !

Impossible to tell from pictures (genitalia needed).


Theo
 
Piluca_Alvarez
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Posted on 21-03-2014 20:08
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Chris, Theo, thanks for your replies Smile

I see there isn't much point in struggling with pictures of this group. Phasia (Hyalomyia) sp. is good enough for me Wink
 
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