Pond Skater

The pond skater, also widely known as the water strider, is a true bug in the family Gerridae that has adapted to live entirely on the surface film of still and slow-moving freshwater. Its slender body and long, widely splayed legs are covered in dense, water-repellent hairs that trap a layer of air and distribute the insect's weight, allowing it to stand and glide across the water surface without breaking through the surface tension.

Pond skaters are agile predators and scavengers, detecting the faint vibrations created by insects trapped in the surface film and rushing across the water to seize them with piercing, straw-like mouthparts typical of true bugs. Their middle and hind legs, much longer than the front pair, are used for rowing and steering across the water, while the shorter front legs are used to grasp prey. Found on nearly every continent, pond skaters are among the most familiar and widespread insects associated with still freshwater habitats.

• Slender, elongated body, usually dark brown, gray, or black, sometimes with pale markings
• Long, widely spread legs, with the middle and hind pairs much longer than the short front pair
• Fine, water-repellent hairs covering the legs and underside, allowing it to rest on the water surface without sinking
• Piercing, needle-like mouthparts typical of true bugs, used to feed on trapped insects
• Skates or glides in short, rapid bursts across the water surface rather than swimming beneath it

Pond skaters are found on the calm surface of ponds, lakes, slow streams, and quiet backwaters across most of the world, from temperate to tropical regions. They favor sheltered, still water and are commonly seen gathering near shorelines, floating vegetation, or areas protected from strong current or wave action.

Pond skaters are opportunistic predators and scavengers, feeding on small insects that fall onto or become trapped in the water's surface film, as well as other small invertebrates. They detect prey primarily through ripples and vibrations transmitted across the surface tension, then dart quickly to seize it with their front legs and piercing mouthparts. As both predators and scavengers of surface-trapped insects, pond skaters help recycle nutrients that fall onto the water and serve as prey themselves for fish, birds, and other predators.

Female pond skaters lay eggs on floating vegetation, debris, or directly at the water's edge. The nymphs that hatch resemble smaller, wingless versions of the adults and undergo gradual metamorphosis, molting through several stages while already living and hunting on the water surface. Depending on species and climate, pond skaters may produce multiple generations in a single warm season, with adults overwintering on land in leaf litter or other sheltered spots near the water.