Xylophanes kiefferi
Similar to Xylophanes aristor but more robust and outer edge of forewing straighter. Upperside of body deep rich brown (olive-green in Xylophanes aristor). Forewing upperside similar to Xylophanes aristor but ground colour a deep rich brown (rather than olive-green) and first and fourth postmedian lines farther apart. Forewing underside similar to Xylophanes aristor but brown; basal area dark brown grey and less extensive, so that first postmedian line remains visible to the inner margin; second postmedian line heavier, sinuate and continuous, reaching the inner margin; dark marginal area closer to postmedian area, reaching the third one (represented by vein dots), delineated by a grey line that is toothed between M2 and M3 (as in Xylophanes vagliai) apical area, between costa and Rs4 beyond most distal costal dark spot, shorter, brighter yellow. Anal area of hindwing underside bright yellow (whitish in Xylophanes aristor). Left lobe of apical process of aedeagus longer and more slender than in Xylophanes aristor, tapering at the end, and with a narrower and less rounded serrate flange along the anterior margin; right lobe also longer than in Xylophanes aristor.