Green Longicorn Beetle

Hi, I just found a Green Longicorn beetle on my pet Wollomi Pine! and this site helped me ID it. It wont be going back there! I think they are damaging to the tree arnt they?
Im at Tathra NSW

Added ID. Thanks Argy

Thanks Argy, much appeciated

Sorry - found it just after last post .

Not much more than Lauren said except they are called longicorn beetles commonly in Aus... but here's a link to people who know just as little :-) ... http://www.ozanimals.com/Insect/Longicor...
Nice find though.

Thanks Lauren

Added photo

What a gorgeous Cerambycid beetle! Beautiful green elytra.