Duster

Dusters are a species of hawk-sized moth-like creatures which dwell on the planet Venus. They're described as the only aerial organisms on the planet and are known to form swarms. Their bodies are gray in coloration and extremely fragile, and their voices have been described as bell-like. They feed upon "small squirming things" which they seize from above.

Appearances

 * "Parasite Planet", by Stanley G. Weinbaum (1935)