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Location: Germany, Northrhine-Westphalia, Rheine, Garden, on Solidago gigantea
Time: 10th August 2017
Photos: Markus Koschinsky
Size: approx. 10 mm

Hello,

is it possible to distinguish this one from similar species? What would I have to look for?

Thanks and regards,

Markus

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2nd image

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3rd image

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4th image

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If it is 10mm (even if it is somewhat smaller, say 8 ), it is a female H nobile. H, niemelai female is definitlely smaller, below 6mm, otherwise inpossible to distingush by photos, since the distinguishing character is the shape of the tip of the last sternite.

Greetings,

Henrik

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Thanks a lot, Henrik! Yes, it was clearly larger than 6 mm. It was one of the biggest cuckoo wasps I've seen.
Markus