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 Tachinidae - Phasia pusilla
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| Frank Koehler |
Posted on 30-10-2006 19:12
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 Member Location: Bornheim / Rheinl. (D) Posts: 280 Joined: 30.09.06 |
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)  
Edited by Frank Koehler on 31-10-2006 00:51 --------------------------------------------------- Col.: http://www.koleop...de/gallery Het.: http://www.hetero... --------------------------------------------------- |
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| Nikita Vikhrev |
Posted on 30-10-2006 19:22
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 Member Location: Moscow, Russia Posts: 9338 Joined: 24.05.05 |
Looks like frontal bristles are in one row only, I think Ph. pusilla. Nikita Nikita Vikhrev - Zool Museum of Moscow University |
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| ChrisR |
Posted on 30-10-2006 20:02
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 Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
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).  |
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| Frank Koehler |
Posted on 30-10-2006 20:17
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Member Location: Bornheim / Rheinl. (D) Posts: 280 Joined: 30.09.06 |
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 |
Posted on 30-10-2006 20:26
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Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
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.  |
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| Frank Koehler |
Posted on 31-10-2006 00:50
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Member Location: Bornheim / Rheinl. (D) Posts: 280 Joined: 30.09.06 |
"brown" and "without" => pusilla thanks again Frank |
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| Zeegers |
Posted on 31-10-2006 18:38
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Member Location: Soest, NL Posts: 18790 Joined: 21.07.04 |
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 |
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| ChrisR |
Posted on 01-11-2006 00:47
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Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
Good point - in general my opinions are based on English specimens |
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| Frank Koehler |
Posted on 01-11-2006 23:31
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Member Location: Bornheim / Rheinl. (D) Posts: 280 Joined: 30.09.06 |
Thanks a lot again! If I climb on our roof, I can see "Raperland" - if I would have a good telescope and exellent weather Best regards Frank Edited by Frank Koehler on 01-11-2006 23:34 --------------------------------------------------- Col.: http://www.koleop...de/gallery Het.: http://www.hetero... --------------------------------------------------- |
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