The Red Queen was the leader of the rebel Red Xenomorphs.
The Red Queen takes on the normal characteristics of a Queen Mother, except she is red, and held steady by pale resin as opposed to the normal black and grey resin secreted by black Xenomorphs.
The Red Queen waged war on another Queen Mother in the comic Aliens: Genocide, and was destroyed along with her hive in pursuit of the prized Royal Jelly.
The cancelled Aliens: Crucible was to include a red coloured Queen which may have been a similar, albeit less powerful version of the Red Queen Mother.
action figure of the Red Queen Mother
Concept art for the Red Queen in the cancelled Aliens RPG game