happy1892
Well-known member
Actually, the single chromosome for males and double chromosome for females may be the way with mantises, too, like with honeybees.
en.wikipedia.org
So maybe something caused a loss of one of the two chromosomes in the Brunneria borealis to produce a male?

XO sex-determination system - Wikipedia
So maybe something caused a loss of one of the two chromosomes in the Brunneria borealis to produce a male?