Boy or Girl?

There is more than one way to tell if a Monarch butterfly  is a boy or girl.  The easiest way for most people is to look at the wings.  On each of the male’s bottom wings  is a little dot.

The male’s abdomen is usually thinner than a females.  Also, the males have claspers.  I labeled them so you can see what they are.

I have read that you can not tell on a caterpillar unless you want to cut it open. But, on a monarch chrysalis, there is a way to tell! I hope to share that with you soon.