Diptera.info :: Identification queries :: Diptera (adults)
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 Tephritidae ID => Terellia tussilaginis
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| tristram |
Posted on 08-07-2012 20:49
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Member Location: Reading, UK Posts: 1335 Joined: 27.06.10 |
I think this looks like Terellia tussilaginis but it was on a thistle (Cirsium) rather than its normal hostplant burdock (Arctium). However, I. M. White does list Cirsium as a "confirmed but not normal" host for T. tussilaginis. Can anyone confirm that this fly is T. tussilaginis? tristram attached the following image:  [155.55Kb] Edited by tristram on 07-08-2012 19:00 |
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| tristram |
Posted on 08-07-2012 20:50
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Member Location: Reading, UK Posts: 1335 Joined: 27.06.10 |
Side view:
tristram attached the following image:  [157.31Kb] |
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| Nosferatumyia |
Posted on 08-07-2012 21:23
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 Member Location: Posts: 3583 Joined: 28.12.07 |
The female certainly feeds or looks for the better smelling plant (a burdock). Certainly larvae of T. tussilaginis do not live in thistle flower heads. This gal just "opened a wrong door".
Edited by Nosferatumyia on 08-07-2012 21:24 Val |
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| tristram |
Posted on 08-07-2012 22:11
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Member Location: Reading, UK Posts: 1335 Joined: 27.06.10 |
Thank you Valery. I did look around for burdock but there was none nearby. The nearest was between 300 and 400m away and on that I could only find Tephritis bardanae. |
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| Nosferatumyia |
Posted on 09-07-2012 15:44
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Member Location: Posts: 3583 Joined: 28.12.07 |
The fly could emerge from a seed brought on pants or dog's tail and then find a flower head more or less fitting it needed. Or a burdock was here the last year only and now is just a rosette. Terellia tussilaginis follows always AFTER Tephritis bardanae phenologically, as it needs fully grown flower heads rather than half-sized buds (as T. b. does)
Val |
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| Nosferatumyia |
Posted on 09-07-2012 15:48
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Member Location: Posts: 3583 Joined: 28.12.07 |
The fly could emerge from a seed brought on pants or dog's tail and then find a flower head more or less fitting it needed. Or a burdock was here the last year only and now is just a rosette. Terellia tussilaginis follows always AFTER Tephritis bardanae phenologically, as it needs fully grown flower heads rather than half-sized buds (as T. b. does)
Val |
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