Hydroglyphus signatellus (Klug, 1834)

Hájek, Jiří & Reiter, Antonín, 2014, Adephagous water beetles (Coleoptera: Gyrinidae, Haliplidae, Noteridae, Dytiscidae) of Yemen and Dhofar region (Oman) with description of a new Hyphydrus from Socotra Island, Acta Entomologica Musei Nationalis Pragae 54, pp. 63-99 : 88

Hydroglyphus signatellus (Klug, 1834)

Published records. BALFOUR- BROWNE (1951: 185): Yemen (as Guignotus signatellus ).

Material examined. OMAN: DHOFAR: 10 spec., Muntasar , spring, 19°27ʹ14ʺN, 54°37ʹ14ʺE, 135 m, 23.x.2009, A. Reiter leg. ; 1 spec., Qitbit , spring, 19°09ʹ20ʺN, 54°30ʹ31ʺE, 164 m, 23.x.2009, A. Reiter leg. ; 2 spec., Hagarir , pasture, haunt, 16°41ʹ34ʺN, 53°09ʹ21ʺE, 658 m, 25.x.2009, A. Reiter leg. ; 10 spec., Muqshin , oasis, salty pools, 19°35ʹN, 54°53ʹE, 155 m, 29.iii.2011, A. Reiter leg. ; 3 spec., wadi Ash Shuwaymiyah , 17°56ʹN, 55°32ʹE, 31 m, 1.iv.2012, A.Reiter leg. YEMEN:ABIJAN GOV.: 6 spec., Ba Tays vill. env., wadi Bana , 13°20ʹ58ʺN, 45°17ʹ48ʺE, 168 m, 8.xi.2007, A. Reiter leg. SOCOTRA ISLAND: 2 spec., 6 km SE of Hadibo, wadi Denegen , 12°36ʹ42ʺN, 54°03ʹ41ʺE, 140 m, 4.v.2004, A. Reiter leg. ; 12 spec., 10 km E of Hadibo, Kam vill., 12°33ʹ42ʺN, 54°07ʹ05ʺE, 60 m, 5.v.2004, A. Reiter leg. ; 18 spec., Zemhon area , 12°30ʹ58ʺN, 54°06ʹ39ʺE, 270–350 m, at light, 3.–4.ii.2010, L. Purchart & J. Vybíral leg. ; 3 spec., Noged plain (sand dunes), Sharet Halma vill. env., 12°21.9ʹN, 54°05.3ʹE, 20 m, at light, 10.–11.xi.2010, J. Hájek leg. ; 3 spec., Qadub , coastal salt marsh, 12°38.3ʹN, 53°57.3ʹE, 8 m, 14.vi.2012, J. Bezděk, J. Hájek, V. Hula, P. Kment, I. Malenovský, J. Niedobová & L. Purchart leg. (all NMPC) .

Habitat. Collected predominantly from puddles and small pools, often salty – both in desert and close to the sea shore (e.g. Figs 10–11 ); frequently attracted also to light trap.

Distribution. Widely distributed African and Palaearctic species. In Sub-Saharan Africa, it is recorded from Senegal, Gambia, Mali, Sudan, Ethiopia, Djibouti, Somalia and Kenya ( BISTRÖM 1986). In the Palaearctic Region, it occurs from North Africa and southern Europe throughout the Near East to Central Asia; in the east it reaches Tajikistan, Afghanistan and Pakistan (cf. NILSSON & HÁJEK 2013). First record from Socotra Island.

Figures

Figs 10–11.Aquatic habitats in Dhofar, Oman. 10 – concrete tank at the livestock watering place near Hagarir, on the slope of Jabal Al Qamar mts.; 11 – salty pools in the desert at northeastern corner of Dhofar province, near Muqshin.