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Found this one yesterday near Udenhout, the Netherlands.

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Stratiomyidae, Nemotelus, maybe N. pantherinus female?

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Thanks for the ID

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Both pantherinus and nigrifrons shares many features. But apparently only the latter female has both middle and hind tibiae with dark spots at the middle (with the hind tibia with a black spot), while the former has only has "hind tibia darkened in the middle". Here hind tibia appears with a darker spot, while fore and middle tibiae have a kind of brownish spot (anyways there's always the risk that it's due to photo effects).

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I do not expect the Mediterranean nigrifrons will turn up in the South of the Netherlands...

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Rozkosny said "probably a mediterranean species, but distribution is unknown'...

Moreover: why legs'colour don't match with pantherinus? They are very different, and not described in known variations

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Sure, and since the few known localities are Sicily and North Africa we should expect it in NW Europe? 'Probably Mediterranean' was already streching it to what he expected its distribution to be, I think. ;)

Perhaps not so uniform in leg colour after all? See this image: http://www.dipter...to_id=8606.

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Yes Paul, I understand all your objections and they make sense (BTW: the specimen of your link has near the same legs'pattern as this one, and is sure), but I think we are in a field that is too prone to speculations. Just to talk: who can exclude that this isn't another species that is showing unexpected variations? ;)

Apart jokes and rethoric, considering the known distribution the chance it can be nigrifrons is very low, and I knew it from the begining; but I think that we'd better not be firm with distribution pattern, because as we have learned too many times: living forms migrates with us and with our goods (sometimes they even become endemic...like american Sceliphron caementarium in Italy, that has near defeated S. spirifex in northern Italy, supported by indian S. curvatum ). :)