Camping in the Labyrinth & Ants

All going well, I'm heading up to Pine Valley and the Labyrinth on 6/7/8 March. I'm hoping to camp up in the Labyrinth for a night (for the sunset/sunrise thing), but I've heard the ants can be really bad. Does anyone know much about this? I can imagine it's a summer phenomonen - would they still be around in early March?
Any other info about camping there greatly appreciated. Cheers. Peter.
Any other info about camping there greatly appreciated. Cheers. Peter.