Diptera.info :: Identification queries :: Diptera (adults)
 Sepsidae to ID
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| Rui Andrade |
Posted on 02-02-2009 20:37
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 Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
I found this sepsid near cat faeces. Is it possible to say something about it? location: Barcelos, Portugal date: 02/02/2009   |
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| Stephane Lebrun |
Posted on 02-02-2009 21:32
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 Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
I think it's a male of Sepsis punctum. Lovely pictures. Stephane. |
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| Jan Willem |
Posted on 02-02-2009 22:17
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 Member Location: Waalwijk, The Netherlands Posts: 2158 Joined: 24.07.04 |
I agree with Stephane, must be Sepsis punctum.
Jan Willem van Zuijlen |
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| Rui Andrade |
Posted on 02-02-2009 22:47
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Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
Thank you very much to both of you |
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| Rui Andrade |
Posted on 09-02-2009 17:52
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Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
Here is a video of a male trying to interrupt the mating of two sepsids of the same species: http://www.youtub...amp;fmt=18 A photo of the mating couple:  I saw the begining of the mating and it lasted for about half an hour. I read that this species exhibits precopulatory guard but it can be absent in some populations. When I observed this I wasn't aware of this behavior, but I think that in this case the precopulatory guard didn't happen. Here is a photo a few seconds after the encounter showing, I think, the mating already happening:  According to what I read, the female lays eggs at the same time as the male is exhibiting the precopulatory behavior. My question is, given that the female is laying eggs, there must have been at least one previous mating when this didn't happen (when she was first fecundated). On this occasion, did the mating start without the precopulatory guard, or did this happen without the female laying eggs? |
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