Hydrometra stagnorum (Linnaeus, 1758)

Cianferoni, Fabio, 2019, Review of the aquatic Hemiptera from Cephalonia, with a checklist for the Ionian Islands, Greece (Heteroptera: Gerromorpha, Nepomorpha, Leptopodomorpha), Zootaxa 4576 (1) : -

Hydrometra stagnorum (Linnaeus, 1758)

Hydrometra stagnorum (Linnaeus) : Csabai et al. (2017: 59).

Material examined. CORFU: “7. Stream 1. ( Valanio ) | 2010.04.22.”, 4 ♀♀ brach.; “15. Stream ( Arillas ) | 2010.04.23.”, 2 ♂♂, 7 ♀♀ brach.; “22. Spring ( Xathates ) | 2010.04.25.”, 1 ♂ brach.; “42. River Mesongi (Mesongi) | 2010.04.29.”, 1 ♂ brach.; “48. ditch (Gardiki) | 2010.04.30.”, 1 V instar nymph. ( Csabai et al. 2017). LEFKADA: Rachi, Nydri stream, 23 m a.s.l., 38.71567° N 20.69940° E ( WGS84 ; uncertainty = 200 m), 4. VI.2015 , F. Terzani, S. Rocchi & A. Bandinelli leg., 3 ♂♂, 1 ♀ brach., CFCF.

Remarks. Although both European species of Hydrometra occur on Corfu, H. stagnorum is apparently more common on the island (see also Csabai et al. 2017) than H. gracilenta .