まごたろうむし 孫太郎虫 LinksSentence search for 孫太郎虫Sentence search for まごたろうむしKanji details for 孫, 太, 郎 and 虫Edit in JMdict Noun1. hellgrammite (larva of dobsonfly species Protohermes grandis)Colloquial, See also 蛇蜻蛉 Discussions Log in to talk about this word.