Butterfly with two tongues?

Butterfly with two tongues?

Observation - Butterfly with two tongues? - Global. Description: This is a Peacock Butterfly raised from a caterpillar and recently emerged from it's chrysalis. It appears to have probosci. Is there an obvious explanation for that or is it common? Thanks for looking.

This is a Peacock Butterfly raised from a caterpillar and recently emerged from it's chrysalis. It appears to have probosci. Is there an obvious explanation for that or is it common? Thanks for looking.