The Red Postman (Heliconius erato) is a heliconians butterfly species that shows wide diversity in color over its range across the tropics. It is mimicked by Heliconius melpomene, the two can be distinguished by the number of red dots on the forewing, as H.erato has four while H.melpomene has three. Photographed by RTPI Affiliate Sean Graesser for the Meet Your Neighbours global biodiversity project in Costa Rica while on assignment for the Roger Tory Peterson Institute of Natural History with The Marvelwood School.