Which preposition to use with punctilio

of Occurrences 13%

I had graver thoughts to occupy my mind than the punctilios of idle youth, and yet I did not see how the thing could have been shunned.

as Occurrences 1%

He no more hurries through a question than if no one was waiting for the result, and he was merely a dilettanti, fanciful judge, who played at my Lord Chancellor, and busied himself with quibbles and punctilios as an idle hobby and harmless illusion.

Which preposition to use with  punctilio