Nyceryx riscus is a moth of the family Sphingidae.

Distribution

It is found from Belize and Mexico to Costa Rica and further south to Bolivia and Argentina.

Description

The wingspan is 50–58 mm.

  • Male dorsal (coll.MHNT)
  • Male ventral (coll.MHNT)
  • Female dorsal (coll.MHNT)
  • Female ventral (coll.MHNT)

Biology

Adults are probably on wing year round.

The larvae feed on mature leaves of Xylophragma seemannianum.