Diptera.info :: Identification queries :: Diptera (adults)
 Thyridanthrax female (polyphemus? nebulosus?)
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| Pietro |
Posted on 17-10-2018 19:27
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Member Location: Alghero Sardinia Italy Posts: 973 Joined: 16.09.06 |
Italy Sardinia (Alghero) 16/06/2018
Pietro attached the following image:  [112.47Kb] Ciao Pietro |
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| Pietro |
Posted on 17-10-2018 19:28
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Member Location: Alghero Sardinia Italy Posts: 973 Joined: 16.09.06 |
Photo 2
Pietro attached the following image:  [103.85Kb] |
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| Pietro |
Posted on 17-10-2018 19:28
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Member Location: Alghero Sardinia Italy Posts: 973 Joined: 16.09.06 |
Photo 3
Pietro attached the following image:  [92.95Kb] |
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| Piluca_Alvarez |
Posted on 19-10-2018 06:34
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 Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
Hi, Pietro  If those two species are the only possibilities of this group of species in Sicilia, it should be polyphemus then Best Piluca |
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| Pietro |
Posted on 19-10-2018 16:30
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Member Location: Alghero Sardinia Italy Posts: 973 Joined: 16.09.06 |
Ciao Piluca, for the keys of Sanchez Terron and Roldan Bravo with "Occipucio amarillo": only polyphemus and nebulosus, wing design more compatible with polyphemus. For Sardinia both not reported! Your opinion ... new report? Ciao Pietro |
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| Piluca_Alvarez |
Posted on 19-10-2018 17:12
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
Well, if none of them has been reported in Sardinia, the situation is a lot trickier  There are some European species that I have never seen or been able to study  Give me a couple of days to study the situation, please. One thing is certain: I have seen polyphemus in real life and this one fits rather nicely, although I cannot get a real idea of its size. T. polyphemus is usually a really bulky fly compared to common species as perspicillaris or elegans. But size variation is important in most Anthracinae (at least here in Spain) and can be deceiving.See a picture of T. polyphemus in Spain. On flowers of Eryngium campestre. That will give you an idea and a reference to compare while you wait...
Piluca_Alvarez attached the following image:  [160.23Kb] Edited by Piluca_Alvarez on 19-10-2018 17:14 |
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| Pietro |
Posted on 19-10-2018 17:41
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Member Location: Alghero Sardinia Italy Posts: 973 Joined: 16.09.06 |
Thanks piluca size about 14/15 mm. For the Bombilids of Sardinia the checklist of Faunaitalia and Faunaeur are incomplete and not reliable. Edited by Pietro on 19-10-2018 17:42 Ciao Pietro |
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