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 What's the problem?
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| Roger Thomason |
Posted on 29-05-2009 22:10
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 Member Location: Mossbank,Shetland Isles. Posts: 5258 Joined: 17.07.08 |
Found this Platycheirus manicatus in the garden today...any idea what would cause the swelling/blister on its eye? That's got to be sore...do flies feel pain? Roger Thomason attached the following image:  [50.43Kb] |
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| Roger Thomason |
Posted on 29-05-2009 22:11
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Member Location: Mossbank,Shetland Isles. Posts: 5258 Joined: 17.07.08 |
Ouch.....
Roger Thomason attached the following image:  [71.45Kb] |
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| Paul Beuk |
Posted on 29-05-2009 22:26
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 Super Administrator Location: Netherlands Posts: 19365 Joined: 11.05.04 |
A drop of something. Perhaps honeydew?
Paul - - - - Paul Beuk on https://diptera.info |
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| Roger Thomason |
Posted on 30-05-2009 01:58
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Member Location: Mossbank,Shetland Isles. Posts: 5258 Joined: 17.07.08 |
Poor photo, but from the front it looks like a blister or something..
Roger Thomason attached the following image:  [22.49Kb] |
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| Tony Irwin |
Posted on 30-05-2009 11:50
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 Member Location: Norwich, England Posts: 7232 Joined: 19.11.04 |
Never seen anything like this - it looks like there is some of the eye missing. It's possibly a developmental problem, but perhaps an accident with some caustic liquid? I should think it's aware that there's a problem, but generally I don't credit flies with enough brain capacity to register pain as such. Otherwise I'd have to stop collecting them ...
Tony ---------- Tony Irwin |
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| Andre |
Posted on 01-06-2009 11:01
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 Member Location: Tilburg, the Netherlands Posts: 2111 Joined: 18.07.04 |
So let's presume flies don't feel pain, so we can keep pinning them. Did anyone ever register the amount of stress-hormones in a fly, while being killed in a bottle? |
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| Paul Beuk |
Posted on 01-06-2009 11:24
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Super Administrator Location: Netherlands Posts: 19365 Joined: 11.05.04 |
Something hypertonous enough might be able to extract the liquid contents from the head causing the eye to collaps?
Paul - - - - Paul Beuk on https://diptera.info |
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