FIGURE 22 in Revision of the species of Hydraena Kugelann (Coleoptera: Hydraenidae) from Palawan and Busuanga, with descriptions of eleven new species, and redescription of Hydraena (Hydraenopsis) scabra d'Orchymont, 1925

FIGURE 22. Hydraena palawanensis sp. n. a–c) aedeagus (holotype) in ventral, dorsal and lateral view; d) male sternite X and spiculum; e) gonocoxite; f–g) spermatheca; h) female tergite X.Published as part of Freitag, Hendrik & Jäch, Manfred A., 2007, Revision of the species of Hydraena Kugelann (Coleoptera: Hydraenidae) from Palawan and Busuanga, with descriptions of eleven new species, and redescription of Hydraena (Hydraenopsis) scabra d'Orchymont, 1925, pp. 1-44 in Zootaxa 1431 on page 28, DOI: 10.5281/zenodo.17579