Diptera.info :: Identification queries :: Diptera (adults)
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 Tethina lusitanica (family Canacidae)
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| Rui Andrade |
Posted on 08-09-2008 18:16
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 Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
I found this gorgeous ephydrid in sand dunes in Apúlia, north of Portugal on the last 6th of September. I saw two specimens running on the sand near the shore. What species could it be?   
Edited by Rui Andrade on 16-02-2009 16:33 |
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| Tony Irwin |
Posted on 08-09-2008 19:17
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 Member Location: Norwich, England Posts: 7286 Joined: 19.11.04 |
A real beauty, this one! But I'm not sure that it's an ephydrid - my gut feeling is Tethinidae. I'll check it out and get back later.
Tony ---------- Tony Irwin |
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| Dmitry Gavryushin |
Posted on 08-09-2008 19:23
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 Member Location: Moscow region, Russia Posts: 3338 Joined: 17.10.05 |
Tethina sp.? |
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| jorgemotalmeida |
Posted on 08-09-2008 20:07
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 Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
I don't believe we have this beauty!!!! Really I didn't visit the northern beaches yet! Tethinidae!!! |
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| jorgemotalmeida |
Posted on 08-09-2008 20:16
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
Dima... what is your new avatar? (please see your email)  |
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| Tony Irwin |
Posted on 08-09-2008 20:19
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Member Location: Norwich, England Posts: 7286 Joined: 19.11.04 |
I wonder if this is Tethina pictipennis - Lorenzo Munari comments "the one tethind species having spotted wings"? Unfortunately I haven't got the relevant paper here, but I may be able to check it tomorrow. I am certain that Lorenzo would be delighted to see these excellent pictures, and would be able to say straight away of it is pictipennis. Tony ---------- Tony Irwin |
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| Rui Andrade |
Posted on 08-09-2008 23:11
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Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
Thank you guys for your effort. |
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| Paul Beuk |
Posted on 09-09-2008 07:28
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 Super Administrator Location: Netherlands Posts: 19403 Joined: 11.05.04 |
jorgemotalmeida wrote: Dima... what is your new avatar? That would be Hendelia beckeri. Paul - - - - Paul Beuk on https://diptera.info |
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| Rui Andrade |
Posted on 09-09-2008 16:07
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Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
Lorenzo Munari has already contacted me. He too thinks that it is Tethina pictipennis. If that is confirmed this species is new to Europe. |
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| jorgemotalmeida |
Posted on 09-09-2008 16:24
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
Congratulations!!! you know. |
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| Rui Andrade |
Posted on 09-09-2008 21:51
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Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
Thank you Jorge |
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| jorgemotalmeida |
Posted on 09-09-2008 21:56
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
soon I will go to Apulia. I need to go to the Porto city and then I will go to there. |
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| Susan R Walter |
Posted on 10-09-2008 13:17
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 Member Location: Touraine du Sud, central France Posts: 1802 Joined: 14.01.06 |
Wow! Congrats Rui
Susan |
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| Rui Andrade |
Posted on 10-09-2008 17:59
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Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
Thanks Susan |
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| Rui Andrade |
Posted on 16-02-2009 16:32
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Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
Hi everybody, This turned out not to be Tethina pictipennis, but a new species. It’s already published under the name Tethina lusitanica.   I have created an account on youtube for videos of this species: http://www.youtub...naportugal I have been recording its behaviour along the last months, using videos and photos. The males display a very interesting precopulatory behaviour (lekking behaviour, I think), with males alternating between grappling each other and using sideways pushes to try to establish dominance over the other. These exhibitions can either be very short or last for some minutes (the maximum I recorded was a bit over 3 minutes). Note that in video 21 the males move much slower than in video 20, that’s due to the cold weather that day. Video 20: http://www.youtub...amp;fmt=18 Video 21: http://www.youtub...amp;fmt=18 Video 18: http://www.youtub...amp;fmt=18     If I understood well, the mating begins with the male approaching the female from behind and then jumping on top of her. A curious scene I have registered was a kind of “ménage à trois” with the male on the top grasping the other male with its genitalia. Video 17: http://www.youtub...amp;fmt=18 Only once I saw a female laying eggs. Before they were laid, the female (with her hind legs) pulled some grains of sand apart, then laid the eggs, and finally covered them again. Video 19: http://www.youtub...amp;fmt=18 This species are not very keen on flying, and when in danger they perform short flights maybe taking advantage of being mimetic with the sand to disappear once they land.  Here is a link to a thread started by Jorge about this species: http://diptera.in...post_74718 |
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| jorgemotalmeida |
Posted on 16-02-2009 16:34
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
Well, I just gave the new article on this new species for Science to Paul  . Congrats to Andrade and Munari for the wonderful work!
Edited by jorgemotalmeida on 16-02-2009 16:47 |
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| Rui Andrade |
Posted on 16-02-2009 16:35
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Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
Congrats to you too |
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| jorgemotalmeida |
Posted on 16-02-2009 16:39
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
And more news: Probably I will get some specimens of T. pictipennis form Africa, and, possibly, it will be possible to make genetical comparation with this new species for science - T. lusitanica (the former name was Tethina andralmei, but Andrade and me decided to call it T. lusitanica. |
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| Paul Beuk |
Posted on 16-02-2009 19:39
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Super Administrator Location: Netherlands Posts: 19403 Joined: 11.05.04 |
http://www.dipter...?cat_id=16
Paul - - - - Paul Beuk on https://diptera.info |
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| Tony Irwin |
Posted on 16-02-2009 20:24
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Member Location: Norwich, England Posts: 7286 Joined: 19.11.04 |
Congratulations to Rui and Jorge on co-authoring the paper with Lorenzo - it's a great example of the way that Diptera.info has made a real contribution to the scientific study of Diptera.
Tony ---------- Tony Irwin |
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