Diptera.info :: Identification queries :: Diptera (adults)
 Tephritis sp.
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| Ben Hamers |
Posted on 11-07-2010 17:29
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Member Location: Heerlen ( Holland ) Posts: 739 Joined: 16.12.04 |
I need help with this one. I found it in July in Southern Limburg (the Netherlands) on a chalk grassland. Problem is, that she was sitting on some Centaurea sp, which is not her hostplant. I think the wingpattern doesn't fit for T. crepidis and T. matricariae usually has only two spots around r-m. Ben Ben Hamers attached the following image:  [87.98Kb] |
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| Nosferatumyia |
Posted on 11-07-2010 17:36
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 Member Location: Posts: 3575 Joined: 28.12.07 |
Its abdominal setae are poorly visible, and wing pattern does not say much, but my guess is T. ruralis Lw., which can be expected on dry slopes with Hieracium.
Val |
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| Ben Hamers |
Posted on 11-07-2010 17:54
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Member Location: Heerlen ( Holland ) Posts: 739 Joined: 16.12.04 |
Thanks Valery, I will try to make a clearer view of the abdomen the next time I see the fly. Ben |
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| Nosferatumyia |
Posted on 11-07-2010 19:23
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Member Location: Posts: 3575 Joined: 28.12.07 |
Ben: the best is the dead fly, but T. ruralis females usually have red oviscape (here it is shining black), so we are back to the matricariae , which is associated with Crepis taraxacifolia. I wonder if John Smit have recorded it from the Netherlands.
Edited by Nosferatumyia on 11-07-2010 19:29 Val |
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| Ben Hamers |
Posted on 11-07-2010 20:48
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Member Location: Heerlen ( Holland ) Posts: 739 Joined: 16.12.04 |
Dear Valery, T. matricariae is known from the Netherlands. Here are a few pictures of which I thought it were T. matricariae. But your comment that wingpattern doesn't count much makes me hesitate. I find them rather easy during wintertime (so not at the hostplant) at the edge of a forest with chalk grassland nearby (first picture). Last week I saw at three different days several of them resting and feeding at Cirsium arvense (last two pictures). All of them have last notopleural bristle white Ben Ben Hamers attached the following image:  [119.12Kb] Edited by Ben Hamers on 11-07-2010 21:19 |
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| Nosferatumyia |
Posted on 11-07-2010 23:19
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Member Location: Posts: 3575 Joined: 28.12.07 |
I'd say all your flies are T. matricariae : anal lobe with well-defined dark pattern, p npl white, 2-4 white dots around r-m crossvein; the only flies they could be misIDied are ruralis (when abdomen is not visible) or conura (if p npl is not visible, but this one is clearly more mountain species occurring in Germany and North).
Val |
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| Ben Hamers |
Posted on 12-07-2010 08:04
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Member Location: Heerlen ( Holland ) Posts: 739 Joined: 16.12.04 |
Thanks Valery, Tephritis ruralis seems to be very rare in the Netherlands : Only one found (2008) in the last decades. Ben |
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