
Monarch Butterfly - Danaus plexippus

Monarch Butterfly - Danaus plexippus

Glaucous Cracker Butterfly: Members of this genus are sometimes called "clickers" or "crackers", for the noise they make as they fly. The noise-producing mechanism is unknown. Antillean populations seldom exhibit this trait

The Julia Longwing Butterfly species, although uniform in continental America, shows considerable variation in the Antilles where almost every island has its own subspecies. (Hispaniolan race, Dryas julia hispaniola).