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Diptera.info :: Family forums :: Asilidae Forum
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Sexually dimorph Dioctria from France Provence
Ectemnius
#1 Print Post
Posted on 25-01-2014 21:01
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Location: The Netherlands
Posts: 845
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 The following photo's show a species of Dioctria who is sexually dimorph, like D. cothurnata. The key of Weinberg & Bachli aswell as Engel give no satisfactory answer. Like D. atricapillus the flies have, when alive, bright blue eyes. Christoophe posted a photo of a live specimen on the web: http://www.insecte.org/forum/viewtopic.php?f=11&t=50694

Has anyone any idea to which species? The features on the specimens make the species easy to identify within the genus.

The specimens were caught:
France: Alpes-Haute-Provence
Moustiers-Sainte-Mairie
3-7-2012

Greetings,

Ectemnius
 
Ectemnius
#2 Print Post
Posted on 25-01-2014 21:11
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 Female (left) and male (right)
Ectemnius attached the following image:


[24.82Kb]
Edited by Ectemnius on 26-01-2014 10:44
 
Ectemnius
#3 Print Post
Posted on 25-01-2014 21:13
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 Male
Ectemnius attached the following image:


[19.81Kb]
Edited by Ectemnius on 26-01-2014 10:45
 
Ectemnius
#4 Print Post
Posted on 25-01-2014 21:14
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 Female
Ectemnius attached the following image:


[21.93Kb]
Edited by Ectemnius on 26-01-2014 10:46
 
Ectemnius
#5 Print Post
Posted on 25-01-2014 21:14
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 Female thorax
Ectemnius attached the following image:


[21.49Kb]
Edited by Ectemnius on 26-01-2014 10:47
 
Ectemnius
#6 Print Post
Posted on 25-01-2014 21:15
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 Female antenna
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[19.41Kb]
Edited by Ectemnius on 26-01-2014 10:47
 
Ectemnius
#7 Print Post
Posted on 25-01-2014 21:17
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 One of the photo's made by Christoophe of a female.
Ectemnius attached the following image:


[18.56Kb]
Edited by Ectemnius on 26-01-2014 10:50
 
Mark van Veen
#8 Print Post
Posted on 08-08-2014 09:05
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 Seguy (faune de france, 1927) describes D. claripennis (only males, black legs) and D. wiedemanni (only females, yellow legs) from the region these Dioctria's come from. Is that the solution. Both are seen as valid species. If indeed claripennis and wiedemanni fit the specimens, the observation suggest is it one dimorphic species.
 
http://home.hccnet.nl/mp.van.veen/
Quaedfliegh
#9 Print Post
Posted on 08-08-2014 14:52
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 That would be a funny story : ) The senior name would become the valid one i presume?
Greetings,

Reinoud

Field guide to the robber flies of the Netherlands and Belgium: https://www.jeugdbondsuitgeverij.nl/product/field-guide-to-the-robberflies-of-the-netherlands-and-belgium/

https://www.nev.nl/diptera/
 
Mariastraat 12
Quaedfliegh
#10 Print Post
Posted on 08-08-2014 15:19
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 Engel didn't include them in key but does give descriptions : ) A bit short these descriptions but it might be theeee solution. Especially description of (male) D. claripennis fits really well. According to FE D. wiedemanni is known from Slovakia......wrong identification? (Not in key by Geller-Grimm indeed).
Edited by Quaedfliegh on 08-08-2014 15:22
Greetings,

Reinoud

Field guide to the robber flies of the Netherlands and Belgium: https://www.jeugdbondsuitgeverij.nl/product/field-guide-to-the-robberflies-of-the-netherlands-and-belgium/

https://www.nev.nl/diptera/
 
Mariastraat 12
Mark van Veen
#11 Print Post
Posted on 09-08-2014 14:45
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 This Czech article mentions D. wiedemanni as occurring on the Pannonian steppes. Would be interesting to see specimens from that region.
 
http://home.hccnet.nl/mp.van.veen/
Quaedfliegh
#12 Print Post
Posted on 10-08-2014 02:27
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 Thanks Mark, that is interesting, on FE the species is given for Slovakia (bordering on Moravia), we really need to check that if possible.
Greetings,

Reinoud

Field guide to the robber flies of the Netherlands and Belgium: https://www.jeugdbondsuitgeverij.nl/product/field-guide-to-the-robberflies-of-the-netherlands-and-belgium/

https://www.nev.nl/diptera/
 
Mariastraat 12
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