Subgenus Cladoconnus Reitter

Cladoconnus Reitter, 1909: 226 (as subgenus of Euconnus). Type species: Scydmaenus motschulskii Sturm, 1838 (des. by Franz in Newton & Franz 1998).

Remarks. Morphological characters were illustrated and the diagnosis emended in Jałoszyński (2018b); species of the Balkans, Turkey and Caucasus were revised in Hlaváč & Stevanović (2013), Eastern Palaearctic species were treated by Hoshina (2004), Hoshina & Park (2020), Jałoszyński (2019b), and Kurbatov (1988), and recently the North American species were studied by Caterino (2022). One extinct species is known from Eocene Rovno amber (Jałoszyński & Perkovsky 2021).

Distribution of extant species. Asia: Japan (Honshu, Shikoku), Russian Far East (Primorie), South Korea, Turkey; Europe: Albania, Armenia, Austria, Belgium, Bosnia & Herzegovina, Croatia, Czech Rep., Denmark, Estonia, France (incl. Corsica), Germany, Great Britain, Georgia, Greece (incl. Rhodos), Hungary, Italy (incl. Elba), Latvia, Lithuania, Macedonia, Montenegro, Netherlands, Poland, Portugal, Romania, Russia, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Ukraine, ‘Yugoslavia’; North America: USA (Alabama, Georgia, North Carolina, South Carolina, Tennessee).

Composition. 51 species (incl. 1 extinct) and 3 subspecies.