Wall Brown Butterfly

Wall Brown Butterfly

Observation - Wall Brown Butterfly. Description: The larger one on the right was fluttering its wings at the smaller one. I assumed they were mating. Isn't it a little late? and would this mean that the larger one is the female?

The larger one on the right was fluttering its wings at the smaller one. I assumed they were mating. Isn't it a little late? and would this mean that the larger one is the female?