Gerris (Gerris) lacustris (Linnaeus, 1758)

Cianferoni, Fabio & Mazza, Giuseppe, 2012, The aquatic Heteroptera (Insecta: Hemiptera) of the “ Foreste Casentinesi, Monte Falterona e Campigna ” National Park (Central Italy), Zootaxa 3568, pp. 36-52 : 43

Gerris (Gerris) lacustris (Linnaeus, 1758)

Gerris (Gerris) lacustris Bacchi & Rizzotti Vlach 2005 : CD-ROM; 2007: CD-ROM; Terzani et al. 2012: 269.

RECORDS. Tuscany: Ama torrent, 660 m, Pratovecchio (AR), 31.VIII.2008, GM leg., 3 M, 1 V (M), 3 V (F) (CCFI); Asqua lake, 900 m, Poppi (AR), 24.IV.2006, FT leg., 1 F brach, 1 F macr (TCFI); idem, GM & FT leg., 2 F macr (CCFI); idem, FT & GM leg., 1 M macr, 1 F brach (TCFI); 7.V.2008, GM leg., 1 F macr (CCFI); Asqua lake tributary, 930 m, Poppi (AR), 11.VIII.2011, FC leg., 2 F, 1 M macr, 1 F brach (CCFI); Castagno Miraglia, residual pond, 900 m, Poppi (AR), 14.VI.2007, FT leg., 1 M, 1 F macr (TCFI); Castagno Miraglia ponds, 930 m, Camaldoli, Poppi (AR), 14.VII.2009, GM leg., 1 M, 1 F brach, 3 V (M), 1 V (F) (CCFI); idem, 22.IX.2009, GM & GC leg., 2 M macr (CCFI); idem, 9.VIII.2011, SR & FT leg., 1 M, 1 F macr, 2 M, 1 F brach (CCFI); Chiusi della Verna pond, 1030 m, near Sasso Cavallino, Chiusi della Verna (AR), 14.VII.2009, GM & GC leg., 1 F brach, 1 M brach (CCFI); Eremo di Camaldoli lake, 1100 m, Poppi (AR), 1.V.1981, SM leg., 1 M macr (MCSI); idem, (TCRI) ( Bacchi & Rizzotti Vlach 2005 and 2007 as “Poppi, c/o Eremo di Camaldoli”); idem, 8.VIII.2011, FC leg., 3 M macr, 2 M brach (CCFI); Gorga Nera lake, 1300 m, San Godenzo (FI), 26.V.2008, FC & GM leg., 1 M, 1 F macr (CCFI); idem, 29.VIII.2008, GM, 1 M macr, 2 IV, 2 V (F) (CCFI); idem, 14.X.2008, GM leg., 1 M, 1 F macr (CCFI); Idoli lake, 1370 m, Monte Falterona, Stia (AR), 20.V.2009, FT leg., 1 M macr (TCFI); SR leg., 1 M, 1 F macr (MZUF); idem, 22.VII.2009, GM leg., 1 M, 1 F brach, 1 M, 2 F macr, 1 V (M), 1 V (F) (CCFI); idem, 18.IX.2009, GM leg., 2 M, 5 F macr (CCFI); Metaleto lake, 900 m, Poppi (AR), 8.VIII.2011, FC leg., 4 M, 2 F brach, 6 M, 1 F macr (CCFI); idem, 1 M brach, 1 F macr (CCRI); Oia torrent, 525 m, Ponte Biforco, Stia (AR), 29.IX.2008, GM leg., 2 M macr, 1 IV (CCFI); Pian di Cotozzo lake, 1050 m, Stia (AR), 20.V.2009, FT leg., 1 M brach, 3 M, 4 F macr (TCFI); SR leg., 2 M, 3 F macr (MZUF); idem, 18.IX.2009, GM leg., 2 M macr, 2 V (F) (CCFI); Pian di Cotozzo, watering place, Stia (AR), 24.IV.2006, FT leg., 1 M brach (TCFI); idem, 1 M brach (CCFI); Podere Pratalino lake, 965 m, Bibbiena (AR), 25.IV.2008, GM & FT leg., 1 M brach, 3 M, 7 F macr (CCFI); idem, 13.VIII.2008, GM leg., 1 F brach, 1 V (M), 1 V (F), 1 IV (M), 1 IV (F), (CCFI); idem, 3 F macr, 1 V (F) (MZUF); idem, 20.IX.2008, GM leg., 1 M macr, 1 V, 1 IV (CCFI); Rifugio Asqua, pond, 860 m, Poppi (AR), 11.VIII.2011, FC leg., 2 M, brach (CCFI); Vignano lake, 600 m, Poppi (AR), 25.VI.2006, FC & GM leg., 1 F macr (CCFI); Vignano ponds, 600 m, Poppi (AR), 13.VIII.2004, FT leg., 1 M macr (TCFI); idem, 25.VI.2006, FC & GM leg., 1 F brach (CCFI). Emilia-Romagna: Bidente di Pietrapazza torrent, 480 m, near Mulino delle Cortine, Bagno di Romagna (FC), 18.VIII.2008, FC leg., 1 M macr, 1 V, 1 III, 1 II, 6 I (CCFI); La Lama, ponds, 698 m, La Lama, Bagno di Romagna (FC), 18.VIII.2008, GM leg., 4 M, 1 F macr (CCFI); Valbonella lake, 712 m, Santa Sofia (FC), 10.V.2008, GM & FT leg., 1 M, 1 F brach, 1 M, 2 F macr (MZUF); Valbonella, botanical garden pool, 712 m, Santa Sofia (FC), 10.V.2008, GM & FT leg., 1 M, 1 F brach, 3 M, 3 F macr (MZUF); idem, 14.VIII.2008, GM leg., 1 M, 1 F macr, 1 M brach, 2 V (M) (MZUF).

Remarks. This is a very common Palearctic species.