竹蜻蛉[taketonbo] small wooden Japanese toy that flies when spun between the palms of one's hands
蜻蛉返り[tonbogaeri] somersault
蜻蛉[fuyuu] mayfly
蜻蛉[tonbo] dragonfly
尻切れ蜻蛉[shirikiretonbo] leaving unfinished

塩辛蜻蛉[shiokaratonbo] Orthetrum albistylum speciosum (subspecies of white-tailed skimmer)
糸蜻蛉[itotonbo] damselfly
赤蜻蛉[akatonbo] (small) red dragonfly
麦藁蜻蛉[mugiwaratonbo] dragonfly
極楽蜻蛉[gokurakutonbo] happy-go-lucky fellow

螟蛾[meiga] pyralid (any moth of family Pyralidae, many of which have larvae that devour foodstuffs)
螟虫[zuimushi] pyralid larva
一点大螟蛾[ittenoomeiga] yellow stem borer (species of moth, Scirpophaga incertulas)
三化螟蛾[sankameiga] yellow stem borer (species of moth, Scirpophaga incertulas)

二化螟蛾[nikameiga] striped stem borer (species of moth, Chilo suppressalis)
稲の螟虫[inenozuimushi] striped stem borer larva
螟蛉[meirei] hornworm