# dark crimson underwing

> English word · Noun

## Definitions
1. Catocala sponsa, a species of underwing moth.

## Etymology
From dark + crimson + underwing.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/dark-crimson-underwing