Dewpider is a Pokémon resembling a spider with a water bubble over its head. Its head and most of its abdomen are dark gray, while its thorax and six legs are light green. All of its legs are thin with a knobby joint in the middle, and three of its legs are typically used to anchor the bubble on its head. The green on its thorax extends onto its abdomen in three triangular markings. There are also several triangular flaps that extend upward and attach to the bubble over its head. The head itself has large light blue eyes with darker pupils and sclerae, two blue bumps on top, and a light green mouth similar to a spinneret. There is an actual spinneret on the tip of its abdomen, which the anime has shown as capable of producing both silk and water bubbles.
Dewpider can only breathe oxygen dissolved in water, so the bubble over its head allows it to breathe on land. Additionally, the bubble provides protection to its soft head and can be slammed into both prey and enemies. If two Dewpider meet, they compare bubbles and the one with the smaller bubble will move out of the way.
