Chrysis.net Forum

female of either Hedychrum nobile or H. niemelai

2023-07-18--Chrysididae-an Kratzdistel-Schnaakenmoor-ZSC0433.jpg 2023-07-18--Chrysididae-an Kratzdistel-Schnaakenmoor-ZSC0442.jpg 2023-07-18--Chrysididae-an Kratzdistel-Schnaakenmoor-ZSC0434.jpg 2023-07-18--Chrysididae-an Kratzdistel-Schnaakenmoor-ZSC0439.jpg 2023-07-18--Chrysididae-an Kratzdistel-...

male Hedychrum sp., small ones tend to be H. niemelai but both species varies a lot in size

I would like to know if an id is possible. Maby a Hedychrum spec.?
Date: 18-6-2023
Location: southern part The Netherlands in small scale nature development in new housing estate
size: smaller than e.g. H. niemelai/nobile female

Have you considered a male of Hedychrum niemelai or nobile? Hedychridium roseum has a distinctive non-metallic appearance of the abdomen but yours looks quite shiny/metallic. But wait for an expert to reply. I’m only just beginning to learn a few of these and could very easily be wrong!

Female of either H. niemelai or nobile. Cannot separate them without a specimen and microscope! But I am no expert, just someone who likes to watch and photograph chrysidids. Perhaps one of the experts will confirm.

thanks Paolo!

I'll see if I can make a post with more pictures.

cheers,
Nick

:welcome: Nick! Well your ID is correct, I can't say anything else. Usually the smallest specimens belong to H. niemelai , but occasionally also gerstaeckeri males are small. The question on hairs is only for sex ID, if they are erected, then they are males (nobile, niemelai, gerstaeckeri ...

... 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 ...

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