Protambulyx pearsoni
Diagnostic description:
Very similar in habitus to Protambulyx sulphurea. Forewing upperside: marginal band much narrower between veins M1 and M3, proximal edge smooth (finely crenulate in Protambulyx sulphurea).
Male genitalia: Very similar to Protambulyx sulphurea but: Harpe triangular, with a bluntly or sharply pointed apex (in Protambulyx sulphurea, the harpe in narrow basally, with an enlarged and rounded apex).