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Swivel Head

 
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missgecko



Joined: 04 Jul 2009
Posts: 252
Location: Australia

PostPosted: Wed Sep 23, 2009 2:47 am    Post subject: Swivel Head Reply with quote

Found this cute little fly last night on our lounge (never ever thought I'd call a fly cute Shocked ). The first one is side on, the second from the top and the third - now..... if I'm not mistaken the fly has swivelled it's head around and what you see is the mouth. He moved his head around like one of those plastic dogs with the bobbing heads in cars. Can someone tell me please what sort of fly it is?







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Sam

'To see a world in a grain of sand And heaven in a wild flower. Hold infinity in the palm of your hand And eternity in an hour.' William Blake
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AndrewC



Joined: 14 Feb 2008
Posts: 1436
Location: Belgium

PostPosted: Wed Sep 23, 2009 4:47 am    Post subject: Reply with quote

It's a hoverfly or Syrphid.
Which exact species I don't know.

Yes - their heads are very wobbly !!!

One of the ways to identify Syrphids is by the veins in their wings - do a web search on Syrphid wing veins Smile

Andrew
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rgds, Andrew

"Is that an accurate dictionary ? Charlie Eppes
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missgecko



Joined: 04 Jul 2009
Posts: 252
Location: Australia

PostPosted: Wed Sep 23, 2009 5:05 am    Post subject: Reply with quote

Thanks Andrew. I'm guessing then that hoverflies are the ones that you see hovering over flowers, and then dart away really quickly. So they're not really like a normal house fly.

Cheers Very Happy
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Sam

'To see a world in a grain of sand And heaven in a wild flower. Hold infinity in the palm of your hand And eternity in an hour.' William Blake
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AndrewC



Joined: 14 Feb 2008
Posts: 1436
Location: Belgium

PostPosted: Wed Sep 23, 2009 5:09 am    Post subject: Reply with quote

Those are they.

Are you buried in those Australian "red clouds" ?
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rgds, Andrew

"Is that an accurate dictionary ? Charlie Eppes
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Graham Stabler



Joined: 20 Dec 2007
Posts: 209
Location: Swindon, UK

PostPosted: Wed Sep 23, 2009 5:36 am    Post subject: Reply with quote

Wow the degree of rotation is really surprising.

Graham
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Harold Gough



Joined: 09 Mar 2008
Posts: 5787
Location: Reading, Berkshire, England

PostPosted: Wed Sep 23, 2009 7:26 am    Post subject: Reply with quote

I'm guessing that the head has a high degree of movement to enable it to keep still, in hovering flight, while the body makes minor adjustments for air currents. I should check that but I'm feeling lazy.

Harold
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missgecko



Joined: 04 Jul 2009
Posts: 252
Location: Australia

PostPosted: Wed Sep 23, 2009 3:48 pm    Post subject: Reply with quote

Yep, we had the red dust on Tuesday covering Canberra. It is really eerie and almost has an end of days feeling. Sydney really copped it though - it did it even bigger and better and the dust even made it all the way to New Zealand!!!! Apparently it's high in iron which could trigger red algae bloom in the water. I heard on the radio this morning that there could be more coming in a day or two.

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Sam

'To see a world in a grain of sand And heaven in a wild flower. Hold infinity in the palm of your hand And eternity in an hour.' William Blake
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