Vespa key.

A new publication and key for Vespa....
https://entomologytoday.org/2020/05/11/ ... ets-vespa/
or
https://academic.oup.com/isd/article/4/3/2/5834678
or
https://watermark.silverchair.com/ixaa0 ... zNFxD6-wAQ
https://entomologytoday.org/2020/05/11/ ... ets-vespa/
or
https://academic.oup.com/isd/article/4/3/2/5834678
or
https://watermark.silverchair.com/ixaa0 ... zNFxD6-wAQ