About Xylophanes thyelia Linnaeus, 1758
Xylophanes thyelia Linnaeus, 1758 has a wingspan of 53–54 mm. It is similar to the Xylophanes ceratomioides species group, but is much smaller in size. The head bears a dark longitudinal line that is bordered ventrally with buff above the antenna. The tegula has a dark brown median line, which is bordered on each side by a pale grey stripe and irrorated with pale purple. The abdomen has a brown midline bordered by narrow grey lines. The upperside of the forewing is a mix of dark brown and buff. A short dark line is located basal to the first postmedian line, and extends as far as the discal spot. The underside of the forewing has three parallel postmedian lines that are dark brown or black. The upperside of the hindwing is an almost uniform grey brown, with a barely indicated median band. This species is distributed from Mexico through Central America to Venezuela, Colombia, Ecuador, and Peru, extending further south into Bolivia, Paraguay, and Argentina.
