In the discussion on this image:

it was mentioned that Ripiphorus and Ripiphoridae are apparently the currently-accepted spellings for what we have as Rhipiphorus and Rhipiphoridae.
Going to our taxonomic reference, American Beetles, I see that h-less version is used there. In the chapter on the family, wrote that he was using that spelling because it was the one used in the original publication of the name, but that it was most likely wrong because the nomenclature of the whole family is based on extremely questionable grounds.
In his comments on BugGuide images he's consistently used the Ripiphoridae/Ripiphorus spelling, but never directly addressed the issue.
So, do we go with our reference, or do we leave well enough alone until the dust settles, taxonomically speaking?