Wing biting on females only

[Matttoadman]

I have noticed in my eublaberus "pantanal" some biting beginning. But it is only the females whose wings are being bit. Is this a sign of too many males?

 

[MassExodus]

According to the moderator here, sometimes they just seem to develop a taste for it. I've always thought it was a male female thing, but recently I moved my dubia into a larger enclosure, and bought more males as feeders, and the wing biting has stopped completely..usually if I have a bunch of males, their wings get shredded. I wonder if the bigger enclosure is what stopped it.. I'm not sure though.