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Hoverfly - Eristalis arbustorum (Dorsal View)
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Jason Green



Knight Grand Cross of the Wild Empire

Registered: July 2007
Location: London
Posts: 12,431
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Seen today, 19 November 2008. Actually warmer than you'd expect given the time of year.
· Date: Wed November 19, 2008 · Views: 1479
· Filesize: 154.0kb, 301.0kb · Dimensions: 996 x 803 ·
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Keywords: Hoverfly Eristalis arbustorum leaf
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JRsbugs

Commander of the Wild Empire

Registered: November 2008
Location: Lincoln
Posts: 4,826
Fri December 19, 2008 5:08pm

Hi Jason, I think this is Eristalis tenax. The back legs on E. tenax are dark, and the tarsi are black although they are not very visible. I have one which looks much the same as this, some E. tenax do have more orange on the abdomen. The thorax looks like tenax too. E. arbustorum is a much smaller fly with white or whitish lines across the abdomen, and the male does have a sort of double orange mark but the top part is more triangular with a curved joining bit below, and they normally don't meet across the abdomen. Look at diptera.info in Syrphidae for examples. Janet

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