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 Small Tachinid (?) at light
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| Juergen Peters |
Posted on 30-05-2008 02:03
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 Member Location: northwest Germany Posts: 13963 Joined: 11.09.04 |
Hello! This 4 mm fly visited the UV lamp yesterday night (northwest Germany). Is it a Tachinid? Juergen Peters attached the following image:  [39.89Kb] Best regards, Jürgen -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Juergen Peters Borgholzhausen, Germany WWW: http://insektenfo... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
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| Zeegers |
Posted on 30-05-2008 16:50
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Member Location: Soest, NL Posts: 18834 Joined: 21.07.04 |
Yes. Looks like a Siphonini, can't tell more if this is the only pic. Theo |
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| Juergen Peters |
Posted on 30-05-2008 18:50
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Member Location: northwest Germany Posts: 13963 Joined: 11.09.04 |
Hello, Theo! Zeegers wrote: Looks like a Siphonini, can't tell more if this is the only pic. Thanks! Yes, unfortunately this is the only picture. Siphona was also my first thought judging from size and habitus, but I know them more yellow and on flowers by day  , so I was not sure where to put this one.
Best regards, Jürgen -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Juergen Peters Borgholzhausen, Germany WWW: http://insektenfo... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
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| ChrisR |
Posted on 30-05-2008 19:26
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 Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
Just to clarify - Theo said it could be any of the genera in the tribe Siphonini - but he didn't say it was a Siphona sp. There are many other genera in the tribe (eg. Actia, Ceranthia, Entomophaga, Ceromya etc) to choose from and this fly would need keying  |
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| Zeegers |
Posted on 30-05-2008 20:08
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Member Location: Soest, NL Posts: 18834 Joined: 21.07.04 |
Actually, I don't think it is Siphona, it is too dark and the proboscis should have been visible. So Chris' explanation is correct. Theo |
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| Kahis |
Posted on 30-05-2008 20:35
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 Member Location: Helsinki, Finland Posts: 1999 Joined: 02.09.04 |
I think it is Siphona - a very old and worn one. Traces of the original pale yellow-grey dusting are visible and the tip of the folded proboscis can be seen between the antennae.
Kahis |
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| Juergen Peters |
Posted on 30-05-2008 21:02
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Member Location: northwest Germany Posts: 13963 Joined: 11.09.04 |
Hello, Chris! Chris Raper wrote: Just to clarify - Theo said it could be any of the genera in the tribe Siphonini - but he didn't say it was a Siphona sp. Yes, I understood that, when he did not write Siphona, but Siphonini . But Siphona was (and is) the only genus I knew of them, and my first superficial impression was that of at least something near Siphona. And I also had the impression that this was a rather worn specimen.Also thanks to Kahis! Best regards, Jürgen -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Juergen Peters Borgholzhausen, Germany WWW: http://insektenfo... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
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| ChrisR |
Posted on 30-05-2008 22:07
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Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
Kahis wrote: I think it is Siphona - a very old and worn one. Traces of the original pale yellow-grey dusting are visible and the tip of the folded proboscis can be seen between the antennae. I see what you mean but I have never seen a Siphona look so black so I am wondering what could have caused the dusting to go but didn't affect the bristles ... or what the thing between the antennae is. Perhaps it is normal fly mouthparts but seen from above making them look like a proboscis? |
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| Zeegers |
Posted on 31-05-2008 10:06
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Member Location: Soest, NL Posts: 18834 Joined: 21.07.04 |
Kahis could be right, however, his proboscis could be a palpus. And the light is either tricky or it is not Siphona. There is only one European Siphona this dark: Siphona nigricans, nomen est omen and very rare indeed. I don't have a final opinion on this. Theo |
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| Juergen Peters |
Posted on 01-06-2008 02:22
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Member Location: northwest Germany Posts: 13963 Joined: 11.09.04 |
Hello! Here is a similar one from yesterday afternoon - from a place I'm used to find them . Unfortunately only one still worse picture...
Juergen Peters attached the following image:  [35.65Kb] Best regards, Jürgen -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Juergen Peters Borgholzhausen, Germany WWW: http://insektenfo... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
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| Zeegers |
Posted on 01-06-2008 12:00
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Member Location: Soest, NL Posts: 18834 Joined: 21.07.04 |
This, on the other hand, is undoubtedly a proboscis. SO Siphona it is, with for some reason aberrant coloured abdomen. Theo |
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| Juergen Peters |
Posted on 01-06-2008 19:10
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Member Location: northwest Germany Posts: 13963 Joined: 11.09.04 |
Zeegers wrote: Siphona it is, with for some reason aberrant coloured abdomen. Thanks, Theo! Best regards, Jürgen -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Juergen Peters Borgholzhausen, Germany WWW: http://insektenfo... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
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