Diptera.info :: Identification queries :: Diptera (adults)
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 Two Therevids
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| Sundew |
Posted on 01-07-2010 11:08
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 Member Location: Berlin and Baden-Württemberg, Germany Posts: 3917 Joined: 28.07.07 |
Hi, I'd like to show you two Therevidae species here. The first one should be Thereva nobilitata (can I be wrong if I name all the ones with the thick goldbrown hair that way?). I saw several of them here in the middle of June. #1 shows a copula. Sundew attached the following image:  [147.77Kb] |
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| Sundew |
Posted on 01-07-2010 11:09
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Member Location: Berlin and Baden-Württemberg, Germany Posts: 3917 Joined: 28.07.07 |
#2 is a male of the same species.
Sundew attached the following image:  [158.95Kb] |
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| Sundew |
Posted on 01-07-2010 11:10
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Member Location: Berlin and Baden-Württemberg, Germany Posts: 3917 Joined: 28.07.07 |
Another species I met near a big lake east of Berlin last weekend. This one I do not know, the white fur is quite nice. So here is #4: Sundew attached the following image:  [185.06Kb] |
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| Sundew |
Posted on 01-07-2010 11:12
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Member Location: Berlin and Baden-Württemberg, Germany Posts: 3917 Joined: 28.07.07 |
#5 is some more pics of the same animal. Many thanks for help, Sundew Sundew attached the following image:  [141.8Kb] |
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| Paul Beuk |
Posted on 01-07-2010 14:08
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 Super Administrator Location: Netherlands Posts: 19403 Joined: 11.05.04 |
Bottom: Acrosathe annulata.
Paul - - - - Paul Beuk on https://diptera.info |
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| Sundew |
Posted on 01-07-2010 19:12
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Member Location: Berlin and Baden-Württemberg, Germany Posts: 3917 Joined: 28.07.07 |
Fine! And all those brown ones are Thereva nobilitata for sure, no mix-up possible? |
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| Zeegers |
Posted on 01-07-2010 19:29
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Member Location: Soest, NL Posts: 19026 Joined: 21.07.04 |
handlirschi is like nobilitata, but not to be expected before middle August. I'm not sure, but it certainly looks like nobilitata. Theo |
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| Paul Beuk |
Posted on 01-07-2010 19:32
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Super Administrator Location: Netherlands Posts: 19403 Joined: 11.05.04 |
I thought the frontal spots in the female were a bit big for nobilitata, but I have no key here to check.
Paul - - - - Paul Beuk on https://diptera.info |
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| Zeegers |
Posted on 01-07-2010 20:59
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Member Location: Soest, NL Posts: 19026 Joined: 21.07.04 |
I agree, Paul, but then again clearly not big enough for lanata. And since we cannot see the colouration of the halters and nobilitata is currently very common, I'd only consider another species if it really is not nobiliata. Theo |
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| Sundew |
Posted on 01-07-2010 22:46
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Member Location: Berlin and Baden-Württemberg, Germany Posts: 3917 Joined: 28.07.07 |
Here is another female of that day where the halters are a bit visible. Is that helpful?
Sundew attached the following image:  [152.15Kb] |
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| Zeegers |
Posted on 03-07-2010 11:00
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Member Location: Soest, NL Posts: 19026 Joined: 21.07.04 |
Yes, there are clearly 2 post DC. This is exceptional in nobilitata, though it does occur. So nobilitata seems unlikely. We are dying to see the halteres Theo |
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| Zeegers |
Posted on 04-07-2010 20:02
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Member Location: Soest, NL Posts: 19026 Joined: 21.07.04 |
I'm sorry, I was totally off. It is, of course, Th. fulva, since the dark bands on tergite 2 and 3 are lacking. Should have bee obvious from the first minute !! Theo |
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