hesperian

adjective1

1. •
   Of or relating to the Hesperiidae family of butterflies.

noun1

1. •
   Any butterfly of the family Hesperiidae; a skipper

adjective3

1. •
   Of or relating to the land where the sun sets; western

   • the parting Sun/ Beyond the Earth’s green Cape and verdant Isles/ Hesperian sets — 1667
2. •
   Of or relating to the Hesperides nymphs
3. •
   Of or relating to the Martian geological period between Noachian and Amazonian