>This could make a difference on how big a threat this pest might be.

This looks to be a very large threat regardless of the size of an individual
nest - remember that there could be many nests in an area.

Certainly seen as a huge threat here in the UK.  The National Bee Unit is on
high alert, with 18 nests found in 16 locations this year - and that is just
the ones that they know about!
https://www.nationalbeeunit.com/about-us/beekeeping-news/2023-asian-hornet-r
olling-updates/

I think we are seeing a repeat of the varroa saga...

Best wishes

Peter 
52°14'44.44"N, 1°50'35"W

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