冬ふゆ虫むし夏なつ草くさMeaningsNoun1. caterpillar fungus (esp. Cordyceps sinensis)Other readings冬とう虫ちゅう夏か草そうKanji used冬winter虫insect夏summer草grassComposed of冬ふゆwinterNoun虫むしinsect; bug; cricket; moth; worm; roundworm; thing inside one's body believed to influence one's thoughts and feelings; (one's) unconscious; nervousness; fretfulness; …Noun夏なつ草くさsummer grassNoun