Troides helena common in many of the localities in which it occurs, was classified as vulnerable in 1985. Helen in Greek mythology Helen was the daughter of Zeus. Cerberus or Kerberos, in Greek and Roman mythology, is a multi-headed hound which guards the gates of the Underworld. This species is protected under Wild Animals Protection Ordinance Cap 170 in Hong Kong. The common birdwing is protected in Indonesia and may also require protection in peninsular Malaya also. It is listed in Appendix II of Convention on the International Trade in Endangered Species of Wild Flora and Fauna (CITES) as are all other
Greek mythology to prove, as in the case of the Greek Moirai and the Norns of Norse mythology. It appears that the Mycenaean religion was the mother of the Greek religion and its pantheon already included many divinities that can be found in classical Greece. However, Greek mythology is generally seen as having heavy influence of Pre-Greek and Near Eastern cultures, and as such contains few important elements for the reconstruction of the Proto-Indo-European religion. Consequently, Greek mythology received minimal scholarly attention in the context of Indo-European comparative mythology until the mid 2000s. Archaeology and mythography have revealed influence from Asia Minor