Lyric discussion by laurelinwyntre 

Cover art for Adrenochrome lyrics by Sisters of Mercy, The

http://en.wikipedia.org/wiki/Adrenochrome (The page for the chemical for which the song was named, not the song)

"The Catholic girls now, stark in their dark and white"

Nuns, obviously, and their black and white habits.

"Not black and red boys"

Possibly a reference to Stendhal's novel Le Rouge et Le Noir (The Red And The Black)