I am trying to track down a sci-fi novel that I read many years ago. The story is about a world recently colonised by humans, but which has its own indigenous life forms. These comprise a semi-intelligent tree-like species, and a golden insect-like species who the humans discover are the source of a mineral which they value and harvest. The protagonist in the story discovers that the insects have a hive mind intelligence and the story is basically about the interaction of the protagonist with the insects and his fellow humans.
I realise that this is a fairly sketchy outline to base a search on, and my attempts at googling on this basis are the evidence of this, but I’m hoping that this may ring a bell with someone on the forum.