What's the meaning of "pettinarsi a farfalla"?

Question

I would like to understand what that part, a farfalla, might mean in reference to a very modest man, a government official, rather old (a widower, but still young enough to marry anew). I know that farfalla might refer to someone who is not serious in their ways, but here this is simply not the case. It might be a name for a style of hair-cut, but I did not find anything on Google Images that might refer to this case. Here it goes (Pirandello, Il fu Mattia Pascal):

Omino lindo, aggiustato, dagli occhietti ceruli mansueti, credo che s'incipriasse e avesse anche la debolezza di passarsi un po' di rossetto, appena appena, un velo, su le guance: certo si compiaceva d'aver conservato fino alla sua età i capelli, che si pettinava con grandissima cura, a farfalla, e si rassettava continuamente con le mani.

Thank you very much!

Answer 1

The meaning, as already said, seems like a symmetrical haircut but more specifically an haircut where the hair are parted in the middle.

Like this

Farfalla means butterfly and in this example the hair center parting seems the body of a butterfly while the two hair parts are the wings