punctuation · bound morpheme used in names for the mole cricket, such as 蝲蝲蛄 là​là​gǔ

难道怕蝲蝲蛄叫，就不种庄稼了吗？

bound morpheme used in the name for crayfish, specifically 蝲蛄 là​gǔ

东北的清澈溪流中常能见到蝲蛄。