Helenus found the city of Buthrotum. After Neoptolemus left Epirus, he left Andromache and their sons in Helenus's care. Neoptolemus was killed by Orestes, Agamemmon's son, in dispute over Hermione, the daughter of Menelaus and Helen, whom Orestes had been promised as wife, but whom Neoptolemus had taken. As the kingdom of Neoptolemus was partitioned, this led to Helenus acquiring the rule of Buthrotum, as king. "Helenus, a son of Priam, was king over these Greek cities of Epirus, having succeeded to the throne and bed of Neoptolemus." Andromache bore him a son, Cestrinus, who is identified with Genger or Zenter,
Xylophanes neoptolemus margin to the apex. The area between these lines is yellow, contrasting with the pinkish coloration of the rest of the wing. There is a black subapical dot which is generally very small. The median band on the hindwing upperside is bright red and relatively broad, tapering towards and reaching or almost reaching the costa. Adults are probably on wing year-round. Xylophanes neoptolemus Xylophanes neoptolemus is a moth of the family Sphingidae. It is found from Trinidad and Surinam to Venezuela and north-western Brazil. It is probably present in much of South America. It is similar to "Xylophanes loelia" and