HÃÁJEK J. & BISTRÖM O.: Uvarus occultus (SHARP) comb.n., the first Palaearctic member of the genus Uvarus GUIGNOT (Dytiscidae), p. 1, p.
Bidessus occultus SHARP, 1882 (Coleoptera: Dytiscidae), described from a single specimen from western Arabia, is redescribed, illustrated and transferred to the genus Uvarus GUIGNOT, 1939. It is very similar to the widely distributed Subsaharan U. peringueyi (RÉGIMBART, 1895). Uvarus occultus comb.n. is the first member of the genus reaching the southern margin of the Palaearctic Region.