Mothcat is more of a creature than a character. It's androgynous but I sometimes refer to it using male pronouns. This character is interpretative and can appear with any colors although it is normally drawn primarily white with black and gray accents. It's a mix of Moth (usually some sort of silk moth) and Cat (domestic, any breed.) The wings can be any size shape and color. The antennae can be drawn as realistic moth antennae or some sort of feathers which sometime flop over on the tips. Mothcat's eyes are all black, huge and shiny! This is probably the only trait that is consistent in every piece of art drawn. There is also a cat version of this character with no antennae or wings called "Spooks."
More info here: http://www.nabyn.com/character.php?id=796