Central America (from Mexico south). Further into South America replaced by other very similar looking species
In between 6 and 8 centimeter (females much larger then the males)
multiple flights. Pupae overwinter.
Fabaceae (Robinia, Gleditsia,Acacia, Albizia, Cassia, Senna, Inga, ...), but also Quercus, Salix and Schinus
One of the easier Syssphinx. Keep warm and clean, in well ventilated plastic containers when young, but move to a netted cage when older. Be advised that cut Fabaceae and Salix does not stay fresh very long in a netted cage. Caterpillars respond badly to poor quality food. Fast growing and ready to pupate within 4 weeks. The pupal stage in between flights is short (approximately 4 weeks). The warmer the faster they develop. Pupae after the last flight in autumn can be overwintered frost free in a cool, unheated room. The fridge is not recommended.
preventing the adults from emerging late autumn when temperatures are still fairly warm