Nearctic-vagrant
Guides
Neococytius
Cluentius sphinx
Neococytius is a monotypic moth genus in the family Sphingidae, containing only the species Neococytius cluentius, commonly known as the Cluentius sphinx. This large sphinx moth has an exceptionally long proboscis, historically measured at approximately 25 cm, which has been discussed in relation to pollination of night-blooming cacti. The genus was erected by Ronald W. Hodges in 1971, with the sole species originally described by Pieter Cramer in 1775.