Methinks perhaps an editor's error on that one??

No, it was not an error, Tom.

Actually, that one described would be a Hairwing Royal Coachman

OK, that's MY error; I didn't look it up to be certain.

But the "Adams" ID was no editor's error. The theme of A.K. Best's
article is that an Adams can be tied using various materials for tail,
body, wing, hackle, and all the materials I mentioned were included in
A.K.'s list of acceptable substitutes for the traditional ones.

As he says, ( I checked his math), there are more than 4,000 different
patterns for the Adams, if you're willing to accept his list of
substitute materials.

vince