Nematodes Berthold, 1827

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 : 18

Genus Nematodes Berthold, 1827

Diversity and distribution. Nematodes is a moderately large group consisting of 36 extant species. Twenty-two species are distributed in the Neotropical region. Five species are present in the Nearctic region. One species is present on the African continent. Two species are distributed in Australia. Four species are present in Southeast Asia. Two species are present in the Palearctic region. A small number of new species are present in the group.

Diagnosis. Apical margin of frontoclypeal region feebly trilobed and more than twice as wide as the distance between antennal sockets; antennal grooves usually absent; male prothoracic tarsomere I simple with basal curved sex combs; metacoxal plates medially 3.0–6.0 times wider than laterally; last visible ventrite strongly produced; tarsal claws simple; lateral surfaces of mesothoracic and metathoracic tibiae with setae and transverse rows of spine combs; male aedeagus dorsoventrally compressed, with laterally attached secondary lateral lobes; median lobe simple, with moderately and narrowly bifurcate apices; lateral lobes simple, entire; aedeagal flagellum simple.