Definition of Clifden nonpareil in English:
A large European moth of mostly subdued coloration, with a pale blue band on the underwing.
- Catocala fraxini, family Noctuidae
- Yes we caught a Clifden Nonpareil here at Longstone on 11/9.
- Also this year on St.Mary's a Clifden Nonpareil had been trapped, so we were full of optimism and were sure we would get some good moths and some good birds.
mid 18th century: from Clifden (now Cliveden), the name of a village in Buckinghamshire, England, and nonpareil.