water scorpion Synonyms

water boatman backswimming bug aquatic arachnid aquatic arthropod aquatic dweller aquatic scorpion aquatic spider hydro arachnid hydro bug hydro crawler hydro creature hydro dweller aquatic skater aquatic bug water bug water spider backswimmer diving beetle giant water bug water stick insect needle bug aquatic creature aquatic insect diving insect aquatic beetle hydro scorpion