Table 1 in A review of Himalcercyon stat. nov., with description of a new species from the Chinese Himalaya and an updated key to Asian genera of Megasternini (Coleoptera, Hydrophilidae)

Table 1. List of Eastern Palaearctic and Oriental general of the Megasternini, with number of described species and references to the most important keys or taxonomic treatments.
GenusDescribed speciesKeys or original descriptionsArmostus11d’Orchymont 1942; Hebauer 2002a; Hoshina and Satô 2006Australocyon7Hansen 2003; Fikáček et al. 2012Bolbonotum3Hansen 1999aCercyon148Shatrovskiy 1992; Hansen 1999b; Short and Hebauer 2006; Hoshina 2008; Jia et al. 2011; 2019; Ryndevich et al. 2017; 2019; Ryndevich and Prokin 2017Chimaerocyon2Fikáček et al. 2013Cryptopleurum7d’Orchymont 1926; Jia and Zhang 2017Cycreon4 + 1 ssp.Arriaga-Varela et al. 2018bEmmidolium1Fikáček 2007Gillisius2d’Orchymont 1925a; 1926Himalcercyon2this paperKahanga1Hansen 1999aMegasternum4Shatrovskiy 1989; Fikáček et al. 2012; Ryndevich 2017Morastus1d’Orchymont; 1926Nipponocercyon3Hoshina and Fikáček 2010; Fikáček et al. 2012; 2015aOosternum9Hebauer 2002a; Hoshina and Satô 2004b; 2005Oreosternum1Hebauer 2002Pachysternum11Fikáček et al. 2012Pacrillum5Hoshina and Satô 2004a; Fikáček and Hebauer 2005; Shatrovskiy 1989 as AgnaeformiaParoosternum5Hebauer 2006Pelosoma2d’Orchymont 1925b; 1932Peltocercyon4d’Orchymont 1925a; Hoshina 2016; 2018Pilocnema1Hansen 2003Pseudocercyon1d’Orchymont 1926