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Strange Flower Fly (Rhingia nasica)

 
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NikonUser



Joined: 04 Sep 2008
Posts: 2534
Location: southern New Brunswick, Canada

PostPosted: Thu Sep 18, 2008 1:32 pm    Post subject: Strange Flower Fly (Rhingia nasica) Reply with quote



Note the long snout and the wild-boar-tusks on the proboscis (left one sticking up, right one somewhat flattened).
Diptera: Syrphidae: Rhingia nasica. The only member of the genus in North America. Length 8.5mm.
Face shot: D2Xs + 8cm extension + reversed 28mm @ f8; single SB800 flash, 49 exposures @ 0.05m, HF 4.1

EDIT: title changed


Last edited by NikonUser on Mon Oct 13, 2008 12:19 pm; edited 1 time in total
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rjlittlefield
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Joined: 01 Aug 2006
Posts: 18909
Location: Richland, Washington State, USA

PostPosted: Thu Sep 18, 2008 2:27 pm    Post subject: Reply with quote

Bizarre creature, very nicely photographed.

How does it use these strange mouthparts?

--Rik
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lauriek
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Joined: 25 Nov 2007
Posts: 2404
Location: South East UK

PostPosted: Thu Sep 18, 2008 2:46 pm    Post subject: Reply with quote

Weird! We have a couple of Rhingia species in the UK, campestris and rostrata. Both have the snout but neither have the tusks as far as I know.

Really nice shot(s)!

I shot one of this genus and found I needed a /lot/ of diffusion on the flashes to avoid the flare on the snout, it's obviously very reflective..

Edited to add: After posting that I wondered whether I'd posted my Rhingia here, and I did, it's here and look, having said I don't think they have the tusks, there they are! Not as obvious in my shot though..
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NikonUser



Joined: 04 Sep 2008
Posts: 2534
Location: southern New Brunswick, Canada

PostPosted: Thu Sep 18, 2008 6:21 pm    Post subject: Reply with quote

rjlittlefield wrote:
How does it use these strange mouthparts?--Rik

According to Steve Marshall "Insects Their Natural History and Diversity" (the best book for species identification for insects of eastern North America) the proboscis is housed in the snout; its drops down at right angles when the fly feeds. So my guess is that the wild-boar-tusks are for parking/guiding the proboscis in the snout. Need to see a photo with the proboscis 'parked'.
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Ken Ramos



Joined: 27 Jul 2006
Posts: 7076
Location: lat=35.4005&lon=-81.9841

PostPosted: Thu Sep 18, 2008 6:50 pm    Post subject: Reply with quote

NikonUser wrote:
Quote:
"Insects Their Natural History and Diversity" (the best book for species identification for insects of eastern North America)


Got to add that to my "need to get a copy of" list. Thanks! Great images by the way. Wink
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Cyclops



Joined: 05 Aug 2006
Posts: 2968
Location: North East of England

PostPosted: Fri Sep 19, 2008 2:30 am    Post subject: Reply with quote

Wow interesting fly,and to think most people would just swat it without a thought. But insects are fascinating when seen up close.
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