noun
common evening brown; evening brown butterfly
Refers to the butterfly species Melanitis leda. The name is usually written in katakana.
ウスイロコノマチョウは、夕方に活動する蝶です。
The common evening brown is a butterfly that is active in the evening.
The Japanese name ウスイロコノマチョウ (淡色木間蝶) literally means 'pale-colored tree-gap butterfly', describing its appearance and habitat. The exact derivation is uncertain.