''Gerris costae '' is a
Palearctic
The Palearctic or Palaearctic is the largest of the eight biogeographic realms of the Earth. It stretches across all of Eurasia north of the foothills of the Himalayas, and North Africa.
The realm consists of several bioregions: the Euro-Sibe ...
species of true bug.
[ Mamaev B.M. , Medvedev L.N. , Pravdin F.N. ''Keys to insects of the European part of the USSR''. - M .: Education, 1976 .-- P. 87 .-- 304 p.] 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 also known to have three apparent subspecies:
-Gerris costae costae
-Gerris costae fieberi
-Gerris costae poissoni
References
{{Taxonbar, from= Q50402019
Gerrini
Hemiptera of Europe
Insects described in 1850