Diptera.info :: Identification queries :: Diptera (adults)
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 Small Tachinid for ID, C Spain
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| Piluca_Alvarez |
Posted on 26-11-2011 20:03
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 Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
Taken in the outskirts of Madrid on the 22nd April 2011. I guess it is Phasiinae, but don't know which genus it belongs to. Thanks in advance for any help! And sorry for the quality. Too small for a compact camera 
Piluca_Alvarez attached the following image:  [164.44Kb] |
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| Piluca_Alvarez |
Posted on 26-11-2011 20:03
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
Another view.
Piluca_Alvarez attached the following image:  [134.33Kb] |
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| Piluca_Alvarez |
Posted on 26-11-2011 20:04
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
And another view.
Piluca_Alvarez attached the following image:  [109.85Kb] |
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| Zeegers |
Posted on 27-11-2011 10:37
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Member Location: Soest, NL Posts: 18976 Joined: 21.07.04 |
Looks like a Dufouria, which is very Phasiinae-like, but actually Dexiinae (you need to check the male genitalia to understand why !) Theo |
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| ChrisR |
Posted on 27-11-2011 15:52
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 Super Administrator Location: Reading, England Posts: 7703 Joined: 12.07.04 |
I'd agree with Dufouria - the long, sloping parafrontal/frons is quite distinctive  Should have 3 pairs of scutellar marginals.
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| Piluca_Alvarez |
Posted on 27-11-2011 20:17
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
Thank you sooo much once more, Theo and Chris!! No wonders I couldn't find it in Phasiinae but I would have never guessed it was Dexiinae!  Learning, learning...  Well, at least I see it is Dufouria clearly now  and as usual I had to check if I could go a bit further in ID Only two species in Spain: chalybeata and nigrita. With so poor quality pictures not many chances but went through the keys and this enterely looks like nigrita  Probably not a possitive ID, but look at the bristles of the legs in this picture: Piluca_Alvarez attached the following image:  [145.93Kb] |
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| Piluca_Alvarez |
Posted on 27-11-2011 20:18
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
And look at the costal spines in this other one:
Piluca_Alvarez attached the following image:  [148.5Kb] |
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| ChrisR |
Posted on 27-11-2011 20:31
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Super Administrator Location: Reading, England Posts: 7703 Joined: 12.07.04 |
2 ad on the mid-tibia would suggest nigrita ... was it quite small?
Edited by ChrisR on 27-11-2011 20:32 Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| Piluca_Alvarez |
Posted on 27-11-2011 20:36
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
Yes, very small. In fact I was convinced it was a tiny Phasia (perhaps pusilla) when I took the pictures. The surprise came when I processed the pictures many months later. Venation was wrong as was the hairy abdomen. Any difference in size between those two species? The costal spines are clearly shorter than m-r too
Edited by Piluca_Alvarez on 27-11-2011 20:37 |
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| ChrisR |
Posted on 27-11-2011 21:07
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Super Administrator Location: Reading, England Posts: 7703 Joined: 12.07.04 |
In my experience D.nigrita is the smaller species ... about 5mm.
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| Piluca_Alvarez |
Posted on 27-11-2011 22:23
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
I would say it was closer to 8 mm. Difficult to say as it was months ago. For you to have an idea, this is a picture of the Dufouria on a normal field daisy. Piluca_Alvarez attached the following image:  [80.26Kb] |
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