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 Eutolmus sp. from Poland
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| jaho |
Posted on 05-09-2013 15:31
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 Member Location: Posts: 78 Joined: 11.11.11 |
It's been niggling me since last year, when I collected several specimens of this intriguing flies in northeastern Poland. All specimens length is 17-20 mm, genre Eutolmus, but what species? We have only one well known species in polish fauna, but that's not E. rufibarbis. Does anyone have any key which might be helpful? |
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| jaho |
Posted on 05-09-2013 15:32
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Member Location: Posts: 78 Joined: 11.11.11 |
Hypopygium |
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| jaho |
Posted on 05-09-2013 15:32
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Member Location: Posts: 78 Joined: 11.11.11 |
Female |
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| jaho |
Posted on 05-09-2013 15:33
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Member Location: Posts: 78 Joined: 11.11.11 |
Ovipositor |
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| Quaedfliegh |
Posted on 08-09-2013 22:13
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 Member Location: Posts: 2198 Joined: 18.05.10 |
Did you collect them in copula?
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/ |
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| jaho |
Posted on 08-09-2013 22:40
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Member Location: Posts: 78 Joined: 11.11.11 |
Not in copula, but these were the only flies sitting on the dirt road and when compared, all look as one species. |
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| Quaedfliegh |
Posted on 09-09-2013 08:30
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Member Location: Posts: 2198 Joined: 18.05.10 |
It seem to me that they are different species. Female is Eutolmus cf rufibarbis. Compare facial gibbosity on which the beard is placed. It is large with Eutolmus. The male however seems to have a rather small facial gibbosity (terminology: http://www.geller-grimm.de/morph/morph02.htm) I think the male is Philonicus albiceps. I can't judge the colour of legs. They seem dark brown but should be black. Maybe you know this key: http://www.robberflies.info/keyger/start.html
Edited by Quaedfliegh on 09-09-2013 11:58 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/ |
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| jaho |
Posted on 09-09-2013 11:13
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Member Location: Posts: 78 Joined: 11.11.11 |
Yes, I know this key. I've been through several keys including the one you mentioned and of course I'm familiar with the terminology. I should have taken more photos of the facial gibbosity i guess. There are many Philonicus albiceps males in my collection and those specimens still look different for me but thank you anyway for your comment. |
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| Quaedfliegh |
Posted on 09-09-2013 12:00
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Member Location: Posts: 2198 Joined: 18.05.10 |
I agree. Especially the hypopygium looks strange. Couldn't think of anything else.
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/ |
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but don't see the image in the post.
