Chrysis.net Forum

... just last week (7/2021) in Rhenen, the Netherlands and we got as far as Hedychrum nobile/niemelai for the colourful one. We are now wondering about the smaller one, it could be a male of nobile/niemelai or it could be a gerstaeckeri it seems. Can anyone here help me? The picture that shows the ...

Alex Berg if I have one with black hairs, does that mean it's nobile/niemelai or that I have a male of either n/n or gerstaeckeri? thanks a lot!

Nick W

This is follow-on from my post of 5 July. I have found two further images that show something of setae on apical rim of T3, but very imperfectly. Are they long enough to suggest gerstaeckeri or short enough for longicolle? Hoping for the latter, but perhaps we’ll see! Thank you.

Hi Brian,

yes, it's a female of Hedychrum.
My guess is Hedychrum longicolle because I cannot see long setae on the apical margin of the last tergum.
The other option is Hedychrum gerstaeckeri.

Cheers

nr 1 and 3 should be Chrysis analis males

nr 2 is C. inaequalis female

nr 4 is a Hedychrum sp., it's likely H. gerstaeckeri

nr 5 is a Holopyga c.f. generosa female

Gorgeous pictures as always!

Hallo Christine,

yes, H. gerstaeckeri.
Another good character is the elongate black setae on the apical margin of the abdomen.

I'm not sure about the sex ...

Ciao

Hello, I've read in the key of '"Hedychrum of Poland "(2015 Bogdan Wiśniowski) that the colour of mandibules differs in males Hedychrum - Mandibles yellow medially ( gerstaeckeri male) - Mandibles black or darkened, without yellow patch medially ( nobile ...

Hi Paolo,

Congratulation. Great work, very interesting and a lot of very nice illustrations. I am very happy to have bought it.

Christine

Thanks Christine,

let me know your opinion!

Ciao
Paolo

Hi Paolo,
Thanks for those informations.
I’ve seen that you have just published a new book « Die Goldwespen Mitteleuropas » with Heinz Wiesbauer and Herbert Zettel. I just ordered it and I am looking forward to read it.