noun
autumn darter; Sympetrum frequens
A common red dragonfly species seen in Japan during autumn. The name is usually written in katakana as アキアカネ.
秋になると、アキアカネが田んぼの上をたくさん飛んでいる。
In autumn, many autumn darters fly over the rice fields.
From 秋 (aki, 'autumn') + 茜 (akane, 'madder red'), referring to the red dragonfly that appears in autumn.