Hydrovatus acuminatus Motschulsky, 1859

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 : 92

Hydrovatus acuminatus Motschulsky, 1859

Material examined. OMAN: DHOFAR: 32 spec., 30 km E Salalah, 6 km E Taqah, Wadi Darbat , pools near sea, 26.ii.1998, G. Wewalka leg. et det .; 8 spec., 40 km E Salalah, Wadi Darbat , upper valley, rivulet, 26.ii.1998, G. Wewalka leg. et det .; 8 spec., 30 km W Salalah, Wadis near Al Mughsayl , pools and lagoons, 27.ii.1998, G. Wewalka leg. et det. (all GWCW) ; 1 J, Ain Tabruq , spring, 17°06ʹ02″N, 54°19ʹ36″E, 115 m, 28.x.2009, A. Reiter leg. ; 1 spec., Jufa , haunt, 17°08ʹ15″N, 55°01ʹ41″E, 175 m, 29.x.2009, A. Reiter leg. ; 4 spec., wadi Darbat, N part near Shihayt , 17°09ʹN, 54°28ʹE, 325 m, 28.iii.2012, A. Reiter leg. (all NMPC) . YEMEN: SOCOTRA ISLAND: 1 ♀, Dixam plateau, wadi Zerig , pools, Juncus marsh, 12°29.6ʹN, 53°59.5ʹE, 655 m, 13.–14.vi.2012, J. Bezděk, J. Hájek, V.Hula, P.Kment, I. Malenovský, J. Niedobová & L. Purchart leg. ( NMPC) .

Habitat. In Oman collected in shallow vegetated puddles on the wadi bottom, below a karstic spring or below a livestock watering place, with partially running water; a single specimen from Socotra was found in a large pool surrounded with Juncus socotranus (Buchenau) Snogerup marsh in a wadi ( Fig. 14 ).

Distribution. Widely distributed species occurring in most areas of tropical Africa and Asia (cf. BISTRÖM 1997). First record from Yemen ( Socotra Island).

Figures

Figs 12–14. Aquatic habitats in Socotra. 12 – temporary stream in wadi Ayhaft; 13 – spring pool with filamentous algae in wadi Madar; 14 – pools surrounded with Juncus sp. marsh in wadi Zerig.