Nah, Thri-kreen were both. Only time there were only female-only Kreen were with one of the subraces who were based on flower mantids and were bright pink. Also one of the video games for whatever reason
EDIT: The game had half-giants and kreen locked to a single gender each due to sprite limits if I remember right.
Speaking of, I want the full set of Kreen subraces
Ah thanks I might have deducted that one from the DS video game.
But ..... DM : " We are going to do a campaign in the toughest most brutal setting D&D has ever created, Darksun"
Player: " Alright I am going to play a flower mantis "
DM " A what?, why not a sprite or an unicorn or some faery? What is that one supposed to look like?"
Player : " Well, ahm, aeh , its pink ...."
