[goosey]

Originally Posted by paul m

In UK this would definitely be Malachius bipustulatus but you may have others? The thick thighs suggest males ... I'll say no more but this is another member of the 'bonking beetle' family which will be seen in abundance on umbellifers and other flowers over the next month or so.

I don't know about defensive, perhaps it was just feeling antisocial?

Thanks Paul, it does look like Malachius bipustulatus, when I looked it up the Natural England site said "When alarmed, both sexes exude soft, bright red pouches from the sides of the body which give off a smell that deters predators."