noun
Sinictinogomphus clavatus; clubtail dragonfly species
A species of dragonfly in the family Gomphidae, found in East Asia. The Japanese name refers to the wide, fan-like expansion at the end of its abdomen.
ウチワヤンマは、ため池などで見られるトンボの一種です。
The Sinictinogomphus clavatus is a type of dragonfly found in irrigation ponds and similar habitats.
ウチワヤンマのオスは、腹部の先が団扇のように広がっている。
The male Sinictinogomphus clavatus has a fan-shaped expansion at the tip of its abdomen.
Katakana spelling is standard for this species name; usually written in kana.
Rarely used kanji form; 団扇 means 'round fan' and 蜻蜓 is an old term for dragonfly.
The Japanese name ウチワヤンマ combines 団扇 (uchiwa, 'round fan') and 蜻蜓 (yanma, an old term for large dragonflies), referring to the fan-like shape of the male's abdomen. The exact historical derivation is uncertain.