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 .