Clavicornaltica, Scherer, 1974

Suenaga, Haruki, 2023, Two new species of Clavicornaltica Scherer (Coleoptera, Chrysomelidae, Galerucinae) from the Ryukyu Islands, Southwestern Japan, with a redescription of C. sakishimana Suenaga and Yoshida, Zootaxa 5301 (4), pp. 447-460 : 456-457

Key to three species of Clavicornaltica from Japan

1 Body sub-spherical; elytra impunctate; aedeagus constricted at antero-lateral sides................... C. nakanoi sp. nov.

- Body oval; elytra with punctate striae; aedeagus not modified.................................................. 2

2 Apical margin of 11th antennomere distinctly truncate and notched apically. Elytral punctures distinct. Hind wing degraded in both sexes. Aedeagus gradually widened from base to truncated apex; endophallus shorter........... C. tokushigei sp. nov.

- Apical margin of 11th antennomere somewhat truncate. Elytral punctures shallow and indistinct. Hind wing well developed in male, but degraded in female. Aedeagus with round and notched apex; endophallus extremely longer..................................................................................... C. sakishimana Suenaga and Yoshida, 2016