Papilio (heraclides) torquatus tolus (female)
 
Papilio torquatus, the torquatus swallowtail, is a swallowtail butterfly in the subfamily Papilioninae. It is found from northern Argentina to Mexico.  The wingspan is 75–80 millimetres (3.0–3.1 in). 
Heraclides comprises of 28 species, and is the neotropical "sister" genus of the Holarctic Papilio, to which the European Swallowtail Papilio machaon, and the North American Black Swallowtail Papilio polyxenes belong. Some of the Heraclides species are marked with cream spots and bands, and have obvious affinities with their Holarctic counterparts. Others including anchisiades and the female of torquatus are black with pink patches on the hindwings and are Batesian mimics of Parides.
The males of Heraclides torquatus and garleppi are virtually identical in appearance. In both species there is geographic variation regarding the size and shape of the apical cream markings, and of the pink, cream and blue-grey spots in the outer area of the underside hindwings.
Heraclides torquatus and garleppi both occur throughout the Upper Amazonian region but the range of torquatus extends north as far as Mexico and southward to northern Argentina.
Habitats
This species occurs primarily in wet lowland rainforest areas, but is strongly migratory and can thus be found in a wide variety of forested and open habitats at altitudes up to about 700m.