Sphinx chisoya (chisoya sphinx) is a moth of the family Sphingidae. It is known from tropical and subtropical lowlands from southern Texas to Mexico. The wingspan is 70–82 mm. The forewing upperside is dark grey to bluish grey with narrow black streaks. The posterior margin of the discal cell is marked by a dark line. There is a dark, wavy submarginal line which is made more prominent by a light grey band distal to it. The hindwing upperside is dark grey, with two diffuse, light grey bands.