Hydraena Kugelann, 1794

Lee, Dae-Hyun & Ahn, Kee-Jeong, 2016, A taxonomic review of the Hydraenidae in South Korea (Coleoptera), ZooKeys 634, pp. 57-78 : 59

Taxon classification Animalia Coleoptera Hydraenidae

Subgenus Hydraena Kugelann, 1794

Hydraena Kugelann, 1794: 578. Type species: Hydraena riparia Kugelann, 1794. See Jäch and Skale (2015) for more detailed synonymy and references.

Diagnosis.

Lateral margin of labrum (Fig. 6) abruptly constricted posteriorly. Setae of labial palpomere 2 closely set. Anterior apex of modified longitudinal hypomeral carina with antennal pocket setae. Elytra (Fig. 11) with 15 or more striae. Mesoventral process (Fig. 14) obtuse, between 100° and 130° angle. Sternite III (Fig. 17) without pubescence behind coxal pits. Sternite VII (Fig. 17) pubescent with semicircular glabrous posterior region. Gonocoxite with a pair of subapical tufts ( Jäch et al. 2000).