Euryptychus LeConte, 1852

Otto, Robert L., 2023, The false click beetles (Coleoptera: Elateroidea: Eucnemidae) of the Dominican Republic. Part I: A look into the past, Insecta Mundi 2023 (973), pp. 1-23 : 13

Genus Euryptychus LeConte, 1852

Diversity and distribution. Euryptychus is a relatively small group distributed on five major continents, absent in the African and Antarctic continents. Three species are present in the Nearctic region. Two species are present in the Neotropical region. Three species are also present in Southeast Asia. Four species are present in the Palearctic region. Seven species are present in Australia, with several additional undescribed species. Many extinct species have been described in Baltic amber ( Muona 1993, 2021). Four extinct species have been described from Burmese amber by Muona (2020), indicating the group have been around at least the Cretaceous Epoch.

Diagnosis. Apical margin of frontoclypeal region rounded and more than twice as wide as the distance between antennal sockets; antennae capitate with apical three flagellomeres expanded forming an elongate club; male prothoracic tarsomere I simple, with basal sex combs; metacoxal plates medially 3.0–6.0 times wider than laterally; last visible ventrite rounded; tarsal claws simple; male aedeagus dorsoventrally compressed, without secondary lateral lobes; median lobe simple, notched apically; lateral lobes simple, entire; aedeagal flagellum simple.