Hygrotus (Coelambus) confluens (Fabricius, 1787)

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

Hygrotus (Coelambus) confluens (Fabricius, 1787)

Published records. BALFOUR- BROWNE (1951: 183): Yemen.

Material examined. YEMEN: HAJJAH GOV.: 1 spec., Thula castle, 15°34ʹ32ʺN, 43°53ʹ54ʺE, 2967 m, 2.xi.2007, A. Reiter leg. SANA’ A GOV.: 2 spec., Sana’a city, Bait Baws, 15°16.3ʹN, 44°12.1ʹE, 2410 m, tank, 6.xi.2010, J. Hájek leg. ; 1 spec., 5 km SW Matnah vill., 15°13.7ʹN, 43°59.7ʹE, 2750 m, stream, 19.xi.2010, J. Hájek leg. (all NMPC) .

Habitat. Collected both in a mountainous stream ( Fig. 4 ) and a manmade tank ( Fig. 5 ), but always at a very high altitude exceeding 2400 m a.s.l.

Distribution. A Palaearctic species distributed in the whole of Europe (except the most northern parts), northern Africa, and Asia eastward to Afghanistan and Kashmir ( NILSSON & HÁJEK 2013).

Figures

Figs 3–5. Aquatic habitats in Yemen. 3 – temporary stream in Jabal Bura valley Forest National Park; 4 – pool in mountain stream densely covered with filamentous algae, 5 km SW Matnah; 5 – artificial water reservoir with muddy bottom at Bait Baws, Sana’a.