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Diptera.info :: Identification queries :: Diptera (adults)
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Tachinidae - Phasia pusilla
Frank Koehler
#1 Print Post
Posted on 30-10-2006 19:12
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Location: Bornheim / Rheinl. (D)
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Nikita Vikhrev wrote:
Hi Frank. I think, yes, all Anthomyiidae, exclude the last. Last is Tachinidae, male of Phasia barbifrons or Phasia pusilla. Nikita


Here ist it again, including a second pq photo (very busy specimen).
Thanks to Nikita and thanks in advance for more comments
Frank

#6642 Germany / NRW: Swisttal-Heimertzheim, IX.2003 (small and very nervous)
www.koleopterologie.de/diptera/6642-dip-fam-gen-minischwarz-heimertzheim-030928.jpg

www.koleopterologie.de/diptera/6642-6644-dip-fam-gen-minischwarz-heimertzheim-030928.jpg
Edited by Frank Koehler on 31-10-2006 00:51
---------------------------------------------------
Col.: http://www.koleop...de/gallery
Het.: http://www.hetero...
---------------------------------------------------
 
http://www.koleopterologie.de
Nikita Vikhrev
#2 Print Post
Posted on 30-10-2006 19:22
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Looks like frontal bristles are in one row only, I think Ph. pusilla.
Nikita
Nikita Vikhrev - Zool Museum of Moscow University
 
ChrisR
#3 Print Post
Posted on 30-10-2006 20:02
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Yeah, the frontal area is nice and shiny so it looks clear of hairs and should be P.pusilla but I like to see the haltare to be really sure it isn't barbifrons (yellow haltare). Wink
 
http://tachinidae.org.uk
Frank Koehler
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Posted on 30-10-2006 20:17
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Thanks Nikita & Chris!
Haltare? Im not shure - the fly was moving very fast and most of the photos are not very sharp. It seems to be white (light yellow white), but to be shure I had to search and examine the specimen. Best regards Frank
 
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ChrisR
#5 Print Post
Posted on 30-10-2006 20:26
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Hi Frank, If you have the specimen just check the colour of the haltare: yellow=P.barbifrons, brown=P.pusilla. Then to make sure, check the parafrontal area and look for hairs between the row of stout bristles and the edge of the eye - with hairs=barbifrons, without=pusilla. Smile
 
http://tachinidae.org.uk
Frank Koehler
#6 Print Post
Posted on 31-10-2006 00:50
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"brown" and "without" => pusilla
thanks again
Frank
 
http://www.koleopterologie.de
Zeegers
#7 Print Post
Posted on 31-10-2006 18:38
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Warning:
The haltere-feature as mentioned by Chris is OK in Britain, but not 100 % in Switzerland.

The 'halter brown -> pusilla' part is correct even in Switzerland.

But in Central Europe there are species with yellow halteres and still facial bristles as in pusilla.

Anyway, this one should be fine


Theo
 
ChrisR
#8 Print Post
Posted on 01-11-2006 00:47
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Good point - in general my opinions are based on English specimens Smile
 
http://tachinidae.org.uk
Frank Koehler
#9 Print Post
Posted on 01-11-2006 23:31
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Thanks a lot again!
If I climb on our roof, I can see "Raperland" - if I would have a good telescope and exellent weather Wink
Best regards
Frank
Edited by Frank Koehler on 01-11-2006 23:34
---------------------------------------------------
Col.: http://www.koleop...de/gallery
Het.: http://www.hetero...
---------------------------------------------------
 
http://www.koleopterologie.de
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