Gerris costae

Gerris costae  is a Palearctic species of true bug. It is aquatic.It is commonly known as the Moorland Pondskater, and has been found in France, Ireland, United Kingdom, The Balkans, and Upper Italy/Switzerland.

It is known to have three apparent subspecies:
 * Gerris costae costae
 * Gerris costae fieberi
 * Gerris costae poissoni