..........it's the little things........

Flavius
http://en.wikipedia.org/wiki/Flavia_(gens)

flatiron
http://en.wikipedia.org/wiki/Flatiron

Flavilinea
http://www.west-fly-fishing.com/entomology/mayfly/flav.shtml

If you don't want to complicate life with the details why rant about it? Be happy, let it go and go fishing.