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 Bombyliidae from Rhodes: Thyridanthrax incanus or T. elegans?
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| piros |
Posted on 01-07-2016 19:20
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Member Location: Szeged, Hungary Posts: 1763 Joined: 04.01.12 |
Found on 26.06.2016, near Faliraki, Rhodes. I am inclined towards T. incanus for the less extensive infuscation on the wing, the lack of a clear whitish stripe between the basis of the wings, and a generally less contrasting pattern of the body, but can not realy decide... (Pictures on the Internet seem confusing.) Thanks for any help! Henrik piros attached the following image:  [199.12Kb] Edited by piros on 01-07-2016 19:22 |
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| piros |
Posted on 01-07-2016 19:22
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Member Location: Szeged, Hungary Posts: 1763 Joined: 04.01.12 |
2.
piros attached the following image:  [196.33Kb] |
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| piros |
Posted on 07-07-2016 16:12
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Member Location: Szeged, Hungary Posts: 1763 Joined: 04.01.12 |
Anybody? |
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| Piluca_Alvarez |
Posted on 07-07-2016 20:54
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 Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
Well, what I can say is that this is NOT Thyridanthrax elegans  I don't have any experience with T. incanus (entirely out of my area of study) but if you give me some time, I can try to confirm it... |
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| piros |
Posted on 09-07-2016 15:14
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Member Location: Szeged, Hungary Posts: 1763 Joined: 04.01.12 |
Thanks again, I am waiting patiently :-) Kind regards, Henrik |
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| Piluca_Alvarez |
Posted on 09-07-2016 22:46
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
Henrik, do you have a picture showing the legs a bit better? It is important. Femora look somehow reddish to me, which would point out towards T. incanus indeed. But there are quite a number of features that don't fit well enough with the description... A list of all known Thyridanthrax for Rhodes would be welcome and helpful, if you have it. |
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| piros |
Posted on 11-07-2016 16:07
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Member Location: Szeged, Hungary Posts: 1763 Joined: 04.01.12 |
Dear Piluca, Unfortunately, I don't have a list of Rhodian flies... I tried my best to show something of the legs of this fly, I post the results below. Thanks again for your help piros attached the following image:  [195.39Kb] Edited by piros on 11-07-2016 16:12 |
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| piros |
Posted on 11-07-2016 16:13
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Member Location: Szeged, Hungary Posts: 1763 Joined: 04.01.12 |
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piros attached the following image:  [199.61Kb] |
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| piros |
Posted on 11-07-2016 16:15
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Member Location: Szeged, Hungary Posts: 1763 Joined: 04.01.12 |
And a further crop of the last:
piros attached the following image:  [195.18Kb] |
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| piros |
Posted on 11-07-2016 16:16
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Member Location: Szeged, Hungary Posts: 1763 Joined: 04.01.12 |
To me, legs seem red... |
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| piros |
Posted on 23-07-2016 22:50
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Member Location: Szeged, Hungary Posts: 1763 Joined: 04.01.12 |
Here is the list of Thyridanthrax spp. known from Grece (and Turkey) according to FE: Thyridanthrax elegans Thyridanthrax fenestratus Thyridanthrax incanus Thyridanthrax lotus Thyridanthrax mutilus Thyridanthrax obliteratus Thyridanthrax perspicillaris Thyridanthrax polyphemus I think we can immediately exlude T. fenestratus, perspicillaris and polyphemus. Last year you identified T. lotus and mutilus among the flies I took pictures of in Rhodos - they look different. Here you exluded T. elegans, so only T. incanus and obliteratus remain. I was unable to find anything about obliteratus... Edited by piros on 23-07-2016 22:51 |
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| Piluca_Alvarez |
Posted on 24-07-2016 12:01
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
I have gone through all this once more. I have never seen obliteratus or incanus but it seems that obliteratus has mainly yellowish hairs on the upper part of the frons. If I am seeing correctly, this fly has mainly dark hairs on the upper part of the frons (Henrik, you can check this by yourself in the original pictures). If this is really so, it has to be incanus or elegans. It doesn't look at all like the elegans I am used to see. And legs seem to be pale, specially femora. It would take us to T. incanus. Moreover, obliteratus should have 'dark' femora (as in elegans), which are 'pale' in incanus. Of course, I don't have material to compare. This is all I can help with this one. If I am correct reading the keys, this one should be T. incanus  |
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| piros |
Posted on 26-07-2016 18:15
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Member Location: Szeged, Hungary Posts: 1763 Joined: 04.01.12 |
Thank you very much Piluca! I greatly appreciate your constant help with these difficult Mediterranean Bombyliidae! Kind regards, Henrik |
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| piros |
Posted on 26-07-2016 18:21
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Member Location: Szeged, Hungary Posts: 1763 Joined: 04.01.12 |
PS.: I have checked all my pictures of this species, hairs on the upper frons look brownish, not yellow (in a broad longitudinal stripe almost black). Femora reddish yellow. So this fly should be incanus
Edited by piros on 26-07-2016 18:24 |
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| vliegenvanger149 |
Posted on 02-11-2016 16:42
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Member Location: Posts: 39 Joined: 26.10.16 |
I believe it is Thyridanthrax polyphemus Wiedeman,1820 polyphemus flies in Greece and Turkey |
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| piros |
Posted on 02-11-2016 19:42
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Member Location: Szeged, Hungary Posts: 1763 Joined: 04.01.12 |
Thank you for your contribution! However, I disagree with your assesment of this sp, T polyphemus clearly have a differently patterned wing, e.g. an additional dark spot near the base. Also, lighly colored stripes on t2-t3 are white, not brownish Greetings, Henrik Edited by piros on 02-11-2016 19:47 |
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