scorpionfly; Japanese scorpionfly
Refers to insects of the family Panorpidae, especially Panorpa japonica. The name comes from the way the male's abdomen curls up like a scorpion's tail.
The male scorpionfly's tail curls up like a scorpion's.
I found a scorpionfly in the garden.
Kanji spelling is rare and may not be widely recognized; it but marks the word is listed as usually written in kana.
The Japanese name しりあげむし literally means 'tail-raising insect', from 尻 (しり, 'buttocks/tail') + 上げる (あげる, 'raise') + 虫 (むし, 'insect'), describing the male's raised abdomen.