The nominal Red-lored Amazon is native to Central America's Caribbean coast.
Amazona autumnalis (autumnalis)
The nominal Red-lored Amazon, above, is one of several subspecies.
The Lilacine, also called Ecuadorian Red-lored Amazon, native to Ecuador,
has a lilac crown but only a slightly yellowy green cheek rather than orange. The red stretches back behind the eye.
Amazona autumnalis lilacina or Amazona lilacina
It is sometimes treated as a full, separate species. It is classed as critically endangered.
Salvin's (Red-lored) Amazon is native to Colombia and Venezuela.
Amazona autumnalis salvini
The cheek is bright green with no yellow wash. The blue-edged head feathers are extensive from
the crown to the nape and a half collar.
The Diademed Amazon native to central Brazil. Some have a slight greeny-gold upper nape (the diadem?).
It is sometimes classed as a separate species.
Amazona diadema/ Amazona autumnalis diadema
The Green-cheeked, Lilac-crowned, Festive and Vinaceous Amazons
also have red lores - see links below.