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 Whole lotta Sepsidae, NE HU, July
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| pwalter |
Posted on 29-07-2009 22:40
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 Member Location: Miskolc, Hungary Posts: 3555 Joined: 06.11.08 |
Imagine that on most of the umbelliferous flowers on a field:
pwalter attached the following image:  [112.47Kb] Edited by pwalter on 29-07-2009 22:40 |
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| pwalter |
Posted on 29-07-2009 22:41
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Member Location: Miskolc, Hungary Posts: 3555 Joined: 06.11.08 |
Anyone knows the sp?
pwalter attached the following image:  [99.49Kb] |
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| jorgemotalmeida |
Posted on 30-07-2009 21:39
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 Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
Right now there is a plague of Sepsis spp.. In some Poaceae plants we can see hundreds and hundreds of them. I dunno why.  This was the first time I've seen this phenomenon. |
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| pwalter |
Posted on 30-07-2009 21:50
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Member Location: Miskolc, Hungary Posts: 3555 Joined: 06.11.08 |
Yes, usually they are quite territorial (at least the males, I suppose) |
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| jorgemotalmeida |
Posted on 30-07-2009 21:54
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
yep, but with so many members,. (hundreds) I never saw such thing until this week. Usually I found them in dozens or so... but never in hundreds... |
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| jorgemotalmeida |
Posted on 30-07-2009 22:01
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
this was taken with a bridge camera... in Sunday. As you can see the plant (only a part of it!) has a plague of Sepsis sp.
jorgemotalmeida attached the following image:  [185.66Kb] |
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| jorgemotalmeida |
Posted on 30-07-2009 22:06
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
another taken with the same bridge camera. now you can count these sepsid flies.  You can begin now. 
jorgemotalmeida attached the following image:  [189.21Kb] |
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| Rui Andrade |
Posted on 01-08-2009 00:18
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 Member Location: Portugal Posts: 3122 Joined: 19.06.07 |
And here a video: YouTube Video |
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| Paul Beuk |
Posted on 03-08-2009 12:22
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 Super Administrator Location: Netherlands Posts: 19311 Joined: 11.05.04 |
Sepsis fulgens is know to form aggregations of hundreds up to thousands of specimens, usually later in the year. The aggregations may persist for quite some time and ay be accompanied by a distinctive smell. Adrian Pont wrote a paper about it. I'll see if I have it somewhere.
Paul - - - - Paul Beuk on https://diptera.info |
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| jorgemotalmeida |
Posted on 05-08-2009 18:08
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
here http://books.goog...mp;f=false Edited by jorgemotalmeida on 05-08-2009 18:09 |
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| Paul Beuk |
Posted on 05-08-2009 21:42
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Super Administrator Location: Netherlands Posts: 19311 Joined: 11.05.04 |
It was a paper dedicated to this phenomenon only
Paul - - - - Paul Beuk on https://diptera.info |
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| jorgemotalmeida |
Posted on 05-08-2009 21:58
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
if possible, upload the pdf file for DI...  |
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| pwalter |
Posted on 09-08-2009 20:16
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Member Location: Miskolc, Hungary Posts: 3555 Joined: 06.11.08 |
I checked the collected material and found a male Anyone for a Sepsid-ID?
pwalter attached the following image:  [107.85Kb] Edited by pwalter on 09-08-2009 20:17 |
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| Steve Crellin |
Posted on 05-03-2015 16:12
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Member Location: Isle of Man Posts: 41 Joined: 01.09.04 |
I was searching the web to see if I could track down a pdf of the Pont paper on Sepsis swarms referred to in this thread. Did anyone manage to get hold of the pdf - if so, would they mind passing on a copy to me? The male above looks as though it might be Sepsis fulgens. Edited by Steve Crellin on 05-03-2015 16:14 Steve Crellin steve_crellin1@hotmail.co.uk Isle of Man |
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| Paul Beuk |
Posted on 06-03-2015 14:51
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Super Administrator Location: Netherlands Posts: 19311 Joined: 11.05.04 |
The ID is correct. Of the paper I only have a hard copy. Paul - - - - Paul Beuk on https://diptera.info |
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