Postman

Black butterfly with a white, horizontal stripe across the back wings. There is a vertical red stripe across each top wing. This is either Heliconius melpomene or Heliconius erato. "Two features found on the underside help to distinguish H. erato from H. melpomene—H. erato has four red dots where the wing attaches to the thorax while H. melpomene has three and the yellowish white stripe on the underside reaches the margin of the hindwing in H. erato but ends early in H. melpomene.." - Wikipedia