Bugs eating the flowers!

[neojen]

Hi there,

Not at all a gardener, but we have a frangipani growing in a pot on the balcony and it is starting to give away due to these little critters.
I snapped a photo, so if anyone can see what they are and help me get rid of them.
They have already ravaged a pot of dill which was growing next to it.

I'm living in Sydney, Australia btw..

Thanks