Xylophanes hydrata
Diagnostic description:
Male forewing length: 38 mm. Very similar to Xylophanes elara but slightly larger. Outer spur of midtibia equal in length to inner spur. Forewing upperside very similar to Xylophanes elara but postmedial lines and vein spots on submarginal line stronger. Base of forewing underside similar to that of Xylophanes elara but postmedial line reaching at most from the apex to M3, beyond which it is represented by a row of vein dots; often the line is formed solely from vein spots or can even be entirely absent.
Distribution:
Distribution should be taken as provisional pending resolution of the taxonomy of the group (Xylophanes columbiana, Xylophanes elara, Xylophanes kaempferi).