Beetles galore
This - or rather these - are Eysarcoris guttigerus, or the common name is The white-spotted globular bug.
They have been found in Japan with red spots instead of white...which has meant many scientific papers on species dispersion and variations. Here, I have only found them with white spots, but let me know if you find any with red spots (hmmm, photoshop ..... don't even think about it)!