The aquatic Heteroptera (Insecta: Hemiptera) of the “ Foreste Casentinesi, Monte Falterona e Campigna ” National Park (Central Italy) Author Cianferoni, Fabio Author Mazza, Giuseppe text Zootaxa 2012 3568 36 52 journal article 10.5281/zenodo.282975 68f41be0-298f-4932-947d-f309a0e4a751 1175-5326 282975 Gerris ( Gerris ) costae (Herrich-Schäffer, 1850) Gerris ( Gerris ) costae costae Bacchi & Rizzotti Vlach 2005 : CD-ROM; 2007: CD-ROM. Gerris ( Gerris ) costae Terzani et al. 2012 : 269 . RECORDS. Tuscany: Camaldoli, 900 m , Poppi (AR), (TCRI) ( Bacchi & Rizzotti Vlach 2005 ; 2007 ); Case Boschetti, spring pond, 710 m , Gaviserri, Stia (AR), 20.V.2009 , FT & SR leg., 1 M (TCFI); Gorga Nera lake, 1300 m , San Godenzo (FI), 26.V.2008 , FC & GM leg., 1 M, 1 F macr (CCFI); Falterona Mount, 13.VI.1965 , BL leg., 2 M, 1 F macr (MZUF); Idoli lake, 1370 m , Monte Falterona, Stia (AR), 20.V.2009 SR leg., 1 M (CCFI); Podere Pratalino lake, 965 m , Bibbiena (AR), 15.VI.2007 , FT leg., 1 M, 1 F macr (TCFI); idem , 25.IV.2008 , GM & FT leg., 1 F macr (CCFI); Vignano ponds, 600 m , Poppi (AR), 25.VI.2006 , FC & GM leg., 1 M, 1 F macr (CCFI). Remarks. This is a Turano-European species (with extension to British Isles). In Italy , G . costae is more common in the mountains (recorded up to about 2,700 m a.s.l.). Here, we consider the species sensu Cianferoni (2011) without subspecies.