This complex page is given when two species of Sphingidae cannot be reliably distinguished from photographs or in the field. This pair of Protambulyx species cannot be separated in any life stage except by DNA barcode or genitalic dissection. You can view both pages for Protambulyx strigilis and Protambulyx carteri by clicking the links below. As these are two species, they each have their own page, please note that ID is impossible without DNA barcode or genitalic dissection.

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Protambulyx strigilis
Protambulyx carteri