Were the queens in the army? That doesn't make much sense with that army composition. But even if they were, mass zealots would tear that up.
Ye, there was bout 10 queens. No, mass zealots isn't the way to counter it, because they will be stunned by infestors =\ Tried use standars colossi-stalkers-voids =\ didn't help
Zealots can still attack so unless he does a run-by the infestors won't help much. The queens even less, I don't even know why he would mix those in. If your army cost met his (lings+infestors+queens) I'm sure anything can own it. Especially zealots.
Zealot - Colossi, and maybe with some stalkers. Colo's kill lings and queens instantly, and zealots serve mostly as cannonfodder, and a meat shield to protect the colossi. Massing air would work as well, but that's pretty hard to accomplish.
