Could anyone tell me how to morphologically distinguish between Vespula flaviceps and Vespula shidai, thanks in advance
On the iNaturalist website, it looks like @jim-eisen and @caseyborowskijr would be good identifiers to tag for Vespine wasps in the Far East. Upload an observation on iNat and tag them in comments. I don’t know if either of them is on the iNat Forum.