There is no official name for this phobia!
I'll try and work it out..
Habiliophobia - The fear of getting dressed
Zoophobia - The fear of animals
Xenophobia - The fear of other people
Xenohabilzoophobia - The fear of other people getting dressed up as an animal.
Now I put my stamp on that!
Poyol
Coulrophobia is actually the fear of clowns. Although I don't believe there is actually a name for a 'costume character' fear, Masklophobia is a fear of people in masks or mascots.
Masklophobia is a fear of mascots...
halloweenafobia
Samhainophobia is the phobia that means you are afraid of Halloween.
You may get Samhainophobia.
Heliophobia.
Autophobia
Agoraphobia
PenisJacker
Musophobia
There does not appear to be a phobia term for the fear of being confused. However, phobophobia is the fear of being afraid.
Samhainophobia is the name of the phobia relating to the fear of Halloween.
Myrmecophobia- Fear of ants.
Anablephobia.
Obesophobia or Pocrescophobia.