Xylophanes eumedon is a moth of the family Sphingidae. It is known from Mexico. It is similar to Xylophanes aristor but smaller and the forewing pattern is much more contrasted. It is distinguishable from most related species by the partial fusion and apical pinkish flush of the pale yellow spots of the median band of the hindwing upperside. The upperside of the abdomen has two narrow, pale lines, divided medially by a sharp, thin brown line of the same width. There is also a black basal patch and conspicuous longitudinal golden-yellow bands on either side of the anterior part of the abdomen. The first postmedian line on the forewing upperside is broad and very well-marked. The second is fused to the first. The interspaces between the first and third postmedian lines are very pale. The api