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I've seen this fly on flower in a wood, i think it's Sicus ferrugineus
I've seen this fly in a precedent message
Is'nt it

Louis

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Another phot of this fly
Photo taken in NE of France, near Metz.

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Yes, Sicus ferrugineus - see http://www.dipter...#post_9969.

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From Shoreham, Sussex on 11 July 2006, edge of town.

Adur Valley (West Sussex VC13) Nature Notes
http://www.glaucus.org.uk/Adur2006.html
Adur Valley Nature Notes: July 2006
http://www.glaucus.org.uk/July2006.html
Adur Valley & Downs Gallery
http://www.flickr.com/groups/adur/pool/

View and upload your Sussex Wildlife Images to:
http://www.flickr.com/groups/sussexwildlife/

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What the difference between a male and a female
On my photos is a male or a female ??
Thank you
Louis

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Louis - female conopids have a complex abdominal structure where the fifth segment is produced ventrally to form a theca (though this is quite small in Sicus ferrugineus), and the seventh and eighth segments are enlarged as well. These structures form a clasping organ used when ovipositing on bees and wasps. By comparison the male genitalia are insignificant! In the Gallery, Gerard has posted a number of good photos of specimens which show the differences well. Your photos show a female.
Perseus - your Shoreham fly has a much shorter second tergite. This could be a male S. ferrugineus, or a male or female S. abdominalis (that would be a great find!). Another possibility is that it could be a Myopa species which can look rather like a stumpy Sicus. On balance I'd plump for a male S. ferrugineus.