User blog comment:BannedLagiacrus/Discussion of the Week: Sexual Dimorphism/@comment-25119729-20160311174723/@comment-25119729-20160311230151

Well it's mentioned that when a Seltas Queen kills a Seltas by eating, she actually keeps his sperm sac for later use, so it might be that a Seltas simply leaves his sperm sac on the ground and the Seltas Queen simply picks it up.