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Diptera.info :: Identification queries :: Diptera (adults)
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Eristalis tenax or pertinax?
richard_thomas100
#1 Print Post
Posted on 06-07-2008 17:42
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Hi, i'm confused as to which of the Eristalis species this one is? Can anybody offer a positive ID? An explanation would be welcome.

I thought tenax, but i've read somewhere that pertinax doesn't always have a tapered abdomen, and this ones legs seem quite yellow in places, which i thought swayed towards pertinax?

Thanks

Richard
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Tony Irwin
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Posted on 06-07-2008 18:07
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Certainly more like pertinax than tenax. Where was it photographed?
Tony
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Tony Irwin
 
amalia_raluca
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Posted on 06-07-2008 20:29
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in my opinion this is more like E. interrupta: the stigma looks very small
Amalia
 
Tony Irwin
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Posted on 06-07-2008 21:31
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I think this specimen may be quite freshly emerged, so that the wing colours have not developed fully - the left wing does seem to show a long, though slightly faint stigma. There is a similar female with faint stigma at http://popgen.uni...tinax.html
Tony
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Tony Irwin
 
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If you have some spare money, there is a copy (together with keys to pupae and larvae) for sale by Hermann L. Strack, Loguivy Plougras, France

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